title: An overview of osteoporosis.
mesh_terms: D000368:Aged; D001284:Atrophy; D001842:Bone and Bones / Q000473:pathology; D004967:Estrogens / Q000502:physiology; D005260:Female; D006801:Humans; D008593:Menopause; D008875:Middle Aged; D010024:Osteoporosis / Q000188:drug therapy / Q000503:physiopathology*
chemical_list: D004967:Estrogens