title: The measurement of calcium absorption using an oral and intravenous tracer. 2. Clinical studies.
mesh_terms: D000368:Aged; D000818:Animals; D002118:Calcium / Q000032:analysis / Q000097:blood / Q000378:metabolism* / Q000652:urine; D002127:Calcium Isotopes; D005243:Feces / Q000032:analysis; D005260:Female; D005743:Gastrectomy; D005763:Gastroenterostomy; D006801:Humans; D007408:Intestinal Absorption; D008297:Male; D008875:Middle Aged; D008892:Milk; D010001:Osteitis Deformans / Q000378:metabolism; D010018:Osteomalacia / Q000378:metabolism; D010024:Osteoporosis / Q000378:metabolism
chemical_list: D002127:Calcium Isotopes; D002118:Calcium