title: Current status of vitamin D assays: are they reliable and sufficiently informative for clinical studies?
authors.forename: Amitha K
authors.initials: AK
authors.lastname: Hewavitharana
mesh_terms: D005591:Chemical Fractionation / Q000379:methods; D002623:Chemistry Techniques, Analytical / Q000379:methods; D006801:Humans; D054928:Validation Studies as Topic; D014807:Vitamin D / Q000032:analysis* / Q000097:blood / Q000378:metabolism*; D014808:Vitamin D Deficiency / Q000097:blood / Q000175:diagnosis* / Q000378:metabolism
chemical_list: D014807:Vitamin D