title: 25-OH-vitamin D assays.
authors.forename: Michael F
authors.initials: MF
authors.lastname: Holick
mesh_terms: D006801:Humans; D014807:Vitamin D / Q000031:analogs & derivatives* / Q000097:blood*; D014808:Vitamin D Deficiency / Q000097:blood* / Q000175:diagnosis
chemical_list: D014807:Vitamin D; C104450:25-hydroxyvitamin D