Calcium absorption and vitamin D metabolism.
D000818:Animals; D001682:Biological Availability; D002117:Calcitriol / Q000378:metabolism / Q000494:pharmacology; D002118:Calcium / Q000378:metabolism*; D005767:Gastrointestinal Diseases / Q000503:physiopathology / Q000628:therapy; D006801:Humans; D007408:Intestinal Absorption / Q000187:drug effects; D014807:Vitamin D / Q000378:metabolism* / Q000502:physiology
D014807:Vitamin D; D002117:Calcitriol; D002118:Calcium