title: Measurement of 25-hydroxyvitamin D revisited.
authors.forename: Jane A
authors.initials: JA
authors.lastname: Schmidt
mesh_terms: D015652:25-Hydroxyvitamin D 2 / Q000097:blood*; D002112:Calcifediol / Q000097:blood*; D002851:Chromatography, High Pressure Liquid; D006801:Humans; D013058:Mass Spectrometry; D011863:Radioimmunoassay
chemical_list: D015652:25-Hydroxyvitamin D 2; D002112:Calcifediol