title: Juvenile osteoporosis.
mesh_terms: D000293:Adolescent; D001416:Back Pain; D002118:Calcium / Q000378:metabolism; D002648:Child; D005260:Female; D005534:Foot Diseases / Q000503:physiopathology; D006801:Humans; D008159:Lumbar Vertebrae; D010024:Osteoporosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000378:metabolism; D010146:Pain; D010758:Phosphorus / Q000378:metabolism; D011859:Radiography
chemical_list: D010758:Phosphorus; D002118:Calcium