title: 25-hydroxyvitamin D: a difficult analyte.
authors.forename: Graham D
authors.initials: GD
authors.lastname: Carter
mesh_terms: D002853:Chromatography, Liquid; D006801:Humans; D007118:Immunoassay; D053719:Tandem Mass Spectrometry; D014807:Vitamin D / Q000031:analogs & derivatives* / Q000097:blood
chemical_list: D014807:Vitamin D; C104450:25-hydroxyvitamin D