title: Primary osteoporosis.
mesh_terms: D000368:Aged; D002118:Calcium / Q000627:therapeutic use; D004967:Estrogens / Q000627:therapeutic use; D005260:Female; D050723:Fractures, Bone / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000150:complications / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000503:physiopathology / Q000517:prevention & control; D012306:Risk; D012969:Sodium Fluoride / Q000627:therapeutic use; D014057:Tomography, X-Ray Computed; D014807:Vitamin D / Q000627:therapeutic use
chemical_list: D004967:Estrogens; D014807:Vitamin D; D012969:Sodium Fluoride; D002118:Calcium