Effect of age on calcium absorption.
D000284:Administration, Oral; D000328:Adult; D000368:Aged; D000375:Aging; D002118:Calcium / Q000008:administration & dosage / Q000097:blood / Q000378:metabolism*; D002127:Calcium Isotopes; D005260:Female; D006801:Humans; D007408:Intestinal Absorption; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D014808:Vitamin D Deficiency / Q000209:etiology
D002127:Calcium Isotopes; D002118:Calcium