title: Between-centre agreement in homocysteine assays: experience from the UK NEQAS proficiency testing scheme.
authors.forename: I
authors.initials: I
authors.lastname: Jennings
authors.forename: S
authors.initials: S
authors.lastname: Kitchen
authors.forename: J
authors.initials: J
authors.lastname: Smith
authors.forename: T A L
authors.initials: TA
authors.lastname: Woods
authors.forename: F E
authors.initials: FE
authors.lastname: Preston
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004797:Enzyme-Linked Immunosorbent Assay; D016231:Fluorescence Polarization Immunoassay; D005612:Freeze Drying; D006710:Homocysteine / Q000097:blood*; D006801:Humans; D020138:Hyperhomocysteinemia / Q000097:blood* / Q000175:diagnosis / Q000453:epidemiology; D015588:Observer Variation; D011863:Radioimmunoassay; D011933:Reagent Kits, Diagnostic; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D006113:United Kingdom / Q000453:epidemiology
chemical_list: D011933:Reagent Kits, Diagnostic; D006710:Homocysteine