title: The clinical application of intestinal 47Ca absorption test by employing our developed arm counter.
mesh_terms: D000328:Adult; D001172:Arthritis, Rheumatoid / Q000175:diagnosis / Q000378:metabolism; D002118:Calcium / Q000378:metabolism*; D002132:Calcium Radioisotopes; D005260:Female; D006801:Humans; D007408:Intestinal Absorption; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000175:diagnosis / Q000378:metabolism; D012588:Scintillation Counting / Q000295:instrumentation*
chemical_list: D002132:Calcium Radioisotopes; D002118:Calcium