Human Elisa

Human Protein Tyrosine Phosphatase Receptor Type Z (PTPRZ) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Protein Tyrosine Phosphatase Receptor Type Z...

Human Cytochrome P450 46A1 (CYP46A1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Cytochrome P450 46A1 (CYP46A1). Cross Activity: This assay has high...

Human Prostaglandin Reductase 1 (PTGR1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Prostaglandin Reductase 1 (PTGR1). Cross Activity: This assay has...

Multi-species Heat Shock Protein 90kDa Alpha A1 (HSP90aA1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Heat Shock Protein 90kDa Alpha A1 (HSP90aA1)...

Human Aryl Hydrocarbon Receptor Nuclear Translocator Like Protein (ARNTL) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection...

Human Thioredoxin Reductase 2 (TrxR2) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Thioredoxin Reductase 2 (TrxR2). Cross Activity: This assay has high...

Multi-species Slit Homolog 3 (Slit3) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Slit Homolog 3 (Slit3). Cross Activity: This assay has high sensitivity...

Human 20S-Proteasome (20S-PSM) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of 20S-Proteasome (20S-PSM). Cross Activity: This assay has high sensitivity and...

Human Cytochrome P450 2D6 (CYP2D6) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability...

Human Cytochrome P450 2C18 (CYP2C18) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability...

Human Cytochrome P450 2B6 (CYP2B6) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability...

Human Cytochrome C Oxidase Subunit II (COX2) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced...

Human Cytochrome C Oxidase Subunit I (COX1) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability...

Human Hemoglobin Alpha 1 (HBa1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Hemoglobin Alpha 1 (HBa1). Cross Activity: This assay has high sensitivity...

Human Immunoglobulin Kappa (Igk) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Immunoglobulin Kappa (Igk). Cross Activity: This assay has high sensitivity...

Human Adrenergic Receptor Beta 1 (ADRb1) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability...

Human Pancreas Specific Transcription Factor 1a (PTF1a) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and...

Human Polymerase DNA Directed Delta 1 (POLd) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Polymerase DNA Directed Delta 1 (POLd). Cross Activity: This...

Human Pericentrin (PCNT) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Pericentrin (PCNT). Cross Activity: This assay has high sensitivity and excellent...

Human Optineurin (OPTN) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions: For...

Human Mitofusin 1 (MFN1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Mitofusin 1 (MFN1). Cross Activity: This assay has high sensitivity and excellent...

Human Urocortin 2 (UCN2) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions: For...

Human Kinectin 1 (KTN1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Kinectin 1 (KTN1). Cross Activity: This assay has high sensitivity and excellent...

Human Islet Cell Autoantigen 1 (ICA1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Islet Cell Autoantigen 1 (ICA1). Cross Activity: This assay has high...

Human Hippocalcin Like Protein 1 (HPCAL1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Hippocalcin Like Protein 1 (HPCAL1). Cross Activity: This assay...

Human Folate Receptor 2, Fetal (FOLR2) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Folate Receptor 2, Fetal (FOLR2). Cross Activity: This assay has high...

Human Constitutive Androstane Receptor (CAR) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Constitutive Androstane Receptor (CAR). Cross Activity: This...

Human Calcium Sensing Receptor (CASR) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Calcium Sensing Receptor (CASR). Cross Activity: This assay has high...

Human Carnitine Acetyltransferase (CRAT) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Carnitine Acetyltransferase (CRAT). Cross Activity: This assay has...

Human Corneodesmosin (CDSN) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions:...

Human Protein Tyrosine Phosphatase Receptor Type F (PTPRF) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Protein Tyrosine Phosphatase Receptor Type F...

Human Tropomyosin Receptor Kinase B (TrkB) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Tropomyosin Receptor Kinase B (TrkB). Cross Activity: This assay...

Multi-species Noggin (NOG) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Noggin (NOG). Cross Activity: This assay has high sensitivity and excellent...

Multi-species Mothers Against Decapentaplegic Homolog 2 (Smad2) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Mothers Against Decapentaplegic Homolog 2...

Human Laminin Alpha 2 (LAMa2) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Laminin Alpha 2 (LAMa2). Cross Activity: This assay has high sensitivity and...

Human Xeroderma Pigmentosum, Complementation Group D (XPD) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and...

Human Arylalkylamine-N-Acetyltransferase (AANAT) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced...

Multi-species Tubulin Beta (TUBb) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Tubulin Beta (TUBb). Cross Activity: This assay has high sensitivity and...

Human Cysteinyl Leukotriene Receptor 2 (CYSLTR2) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced...

Human Cytokeratin 17 (CK17) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Cytokeratin 17 (CK17). Cross Activity: This assay has high sensitivity and...

Human Sialic Acid Binding Ig Like Lectin 7 (SIGLEC7) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Sialic Acid Binding Ig Like Lectin 7 (SIGLEC7). Cross...

Multi-species Signal Transducer And Activator Of Transcription 3 (STAT3) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Signal Transducer And Activator Of...

Multi-species UDP Glucose Ceramide Glucosyltransferase (UGCG) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of UDP Glucose Ceramide Glucosyltransferase...

Multi-species Signal Transducer And Activator Of Transcription 1 (STAT1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Signal Transducer And Activator Of...

Multi-species Signal Transducer And Activator Of Transcription 4 (STAT4) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Signal Transducer And Activator Of...

Multi-species Signal Transducer And Activator Of Transcription 5A (STAT5A) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Signal Transducer And Activator...

Multi-species Signal Transducer And Activator Of Transcription 5B (STAT5B) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Signal Transducer And Activator...

Human Large Multifunctional Peptidase 7 (LMP7) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Large Multifunctional Peptidase 7 (LMP7). Cross Activity:...

Human Tumor Necrosis Factor Receptor Superfamily, Member 9 (TNFRSF9) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Tumor Necrosis Factor Receptor...

Human Colony Stimulating Factor Receptor, Macrophage (MCSFR) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Colony Stimulating Factor Receptor, Macrophage...

Human Amylase, Alpha 2A (AMY2A) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Amylase, Alpha 2A (AMY2A). Cross Activity: This assay has high sensitivity...

Human B-Lymphocyte Activation Antigen B7-1 (LAB7-1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of B-Lymphocyte Activation Antigen B7-1 (LAB7-1). Cross...

Human Ectonucleoside Triphosphate Diphosphohydrolase 1 (ENTPD1) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents...

Multi-species Actinin Alpha 3 (ACTN3) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Actinin Alpha 3 (ACTN3). Cross Activity: This assay has high...

Human Claudin 18 (CLDN18) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Claudin 18 (CLDN18). Cross Activity: This assay has high sensitivity and excellent...

Multi-species Heat Shock 70kDa Protein 1 Like Protein (HSPA1L) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Heat Shock 70kDa Protein 1 Like Protein...

Human P-Selectin Glycoprotein Ligand 1 (PSGL1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of P-Selectin Glycoprotein Ligand 1 (PSGL1). Cross Activity:...

Human Chemokine C-X-C-Motif Receptor 6 (CXCR6) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced...

Human Glutathione S Transferase Alpha 3 (GSTa3) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced...

Multi-species Mothers Against Decapentaplegic Homolog 1 (Smad1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Mothers Against Decapentaplegic Homolog 1...

Human Peroxisomal Biogenesis Factor 2 (PEX2) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced...

Multi-species Proliferating Cell Nuclear Antigen (PCNA) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Proliferating Cell Nuclear Antigen (PCNA). Cross...

Human Cytokeratin 15 (CK15) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Cytokeratin 15 (CK15). Cross Activity: This assay has high sensitivity and...

Human Galectin 12 (GAL12) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions: For...

Multi-species Ubiquitin (Ub) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Ubiquitin (Ub). Cross Activity: This assay has high sensitivity and excellent...

Human Monocyte Chemotactic Protein 2 (MCP2) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability...

Human Selectin, Leukocyte (SELL) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability...

Human Immunoglobulin G1 (IgG1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Immunoglobulin G1 (IgG1). Cross Activity: This assay has high sensitivity and...

Human Bone Morphogenetic Protein Receptor 2 (BMPR2) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Bone Morphogenetic Protein Receptor 2 (BMPR2). Cross...

Human Chorionic Gonadotropin Beta Polypeptide (CGb) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced...

Human Hemoglobin Delta (HBd) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Hemoglobin Delta (HBd). Cross Activity: This assay has high sensitivity and...

Human Fibroblast Growth Factor 13 (FGF13) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability...

Human Luteinizing Hormone Beta Polypeptide (LHb) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Luteinizing Hormone Beta Polypeptide (LHb). Cross Activity:...

Human Hemojuvelin (HJV) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions: For...

Human Myostatin (MSTN) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions: For...

Human Osteogenic Growth Peptide (OGP) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Osteogenic Growth Peptide (OGP). Cross Activity: This assay has high...

Human Fibrinopeptide B (FPB) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Fibrinopeptide B (FPB). Cross Activity: This assay has high sensitivity and...

Human Advanced Oxidation Protein Products (AOPP) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Advanced Oxidation Protein Products (AOPP). Cross Activity:...

Multi-species Enkephalin (ENK) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Enkephalin (ENK). Cross Activity: This assay has high sensitivity and...

Human Serum Amyloid A (SAA) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions:...

Multi-species Gonadotropin Releasing Hormone (GnRH) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Gonadotropin Releasing Hormone (GnRH). Cross Activity:...

Human Inhibin Beta A (INHbA) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions:...

Human Von Willebrand Factor (vWF) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability...

Human Neuromedin S (NMS) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Neuromedin S (NMS). Cross Activity: This assay has high sensitivity and excellent...

Human Ischemia Modified Albumin (IMA) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Ischemia Modified Albumin (IMA). Cross Activity: This assay has high...

Multi-species Glucagon Like Peptide 1 (GLP1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Glucagon Like Peptide 1 (GLP1). Cross Activity: This assay has...

Human Endomorphin 2 (EM2) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Endomorphin 2 (EM2). Cross Activity: This assay has high sensitivity and excellent...

Human Kallikrein 6 (KLK6) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions: For...

Human Glycated Hemoglobin A1c (HbA1c) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Glycated Hemoglobin A1c (HbA1c). Cross Activity: This assay has high...

Human Meprin A Alpha (MEP1a) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions:...

Human Activin A (ACVA) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Activin A (ACVA). Cross Activity: This assay has high sensitivity and excellent...

Human Cluster Of Differentiation 3d (CD3d) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability...

Human Guanylate Binding Protein 1, Interferon Inducible (GBP1) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Guanylate Binding Protein 1, Interferon...

Human Tryptophanyl tRNA Synthetase (WARS) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Tryptophanyl tRNA Synthetase (WARS). Cross Activity: This assay...

Human RAB7A, Member RAS Oncogene Family (RAB7A) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced...

Human Urocortin 3 (UCN3) ELISA Kit is available at Gentaur for next week delivery. Specificity: Cross Activity: Test principle: Assay procedure summary: Stability: Ready-To-Use: Pre-diluted detection reagents and enhanced stability Restrictions: For...

Multi-species Tyrosine 3/Tryptophan 5 Monooxygenase Activation Protein Theta (YWHAq) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Tyrosine 3/Tryptophan 5...

Multi-species Synaptosomal Associated Protein 25kDa (SNAP25) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Synaptosomal Associated Protein 25kDa (SNAP25)...

Human Pepsin (PP) ELISA Kit is available at Gentaur for next week delivery. Specificity: This assay has high sensitivity and excellent specificity for detection of Pepsin (PP). Cross Activity: This assay has high sensitivity and excellent specificity for...