In search of vitamin D.  The right dose for bone health depends on key factors.
D000367:Age Factors; D004305:Dose-Response Relationship, Drug; D005260:Female; D050723:Fractures, Bone / Q000517:prevention & control*; D006304:Health Status; D006801:Humans; D008297:Male; D012737:Sex Factors; D014807:Vitamin D / Q000008:administration & dosage / Q000031:analogs & derivatives*
D014807:Vitamin D; C104450:25-hydroxyvitamin D