title: Isotopic determination of intestinal calcium absorption in normal subjects.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002118:Calcium / Q000378:metabolism*; D002127:Calcium Isotopes / Q000097:blood / Q000652:urine; D002986:Clinical Trials as Topic; D005243:Feces; D006801:Humans; D007408:Intestinal Absorption; D008722:Methods; D008875:Middle Aged
chemical_list: D002127:Calcium Isotopes; D002118:Calcium