title: The measurement of 25-hydroxy vitamin D - an analytical challenge.
authors.forename: Markus
authors.initials: M
authors.lastname: Herrmann
mesh_terms: D016477:Artifacts; D001774:Blood Chemical Analysis / Q000379:methods*; D006801:Humans; D007118:Immunoassay; D014807:Vitamin D / Q000031:analogs & derivatives* / Q000097:blood
chemical_list: D014807:Vitamin D; C104450:25-hydroxyvitamin D