title: Retention of  47  calcium administered orally in patients with primary hyperparathyroidism.
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000368:Aged; D002118:Calcium / Q000097:blood / Q000378:metabolism* / Q000652:urine; D002127:Calcium Isotopes; D005260:Female; D006801:Humans; D006961:Hyperparathyroidism / Q000097:blood / Q000378:metabolism*; D007408:Intestinal Absorption; D008297:Male; D008875:Middle Aged; D013997:Time Factors; D014915:Whole-Body Counting
chemical_list: D002127:Calcium Isotopes; D002118:Calcium