title: Defining vitamin D deficiency.
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Bolland
authors.forename: Andrew
authors.initials: A
authors.lastname: Grey
authors.forename: Tim
authors.initials: T
authors.lastname: Cundy
authors.forename: Ian R
authors.initials: IR
authors.lastname: Reid
mesh_terms: D000368:Aged; D015986:Confounding Factors, Epidemiologic; D019587:Dietary Supplements; D005260:Female; D006801:Humans; D009520:New Zealand / Q000453:epidemiology; D012016:Reference Values; D014807:Vitamin D / Q000031:analogs & derivatives* / Q000097:blood / Q000627:therapeutic use; D014808:Vitamin D Deficiency / Q000175:diagnosis* / Q000453:epidemiology
chemical_list: D014807:Vitamin D; C104450:25-hydroxyvitamin D