title: Contributions of aging and estrogen deficiency to postmenopausal bone loss.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D001862:Bone Resorption / Q000209:etiology*; D004967:Estrogens / Q000172:deficiency*; D005260:Female; D006801:Humans; D008593:Menopause; D008875:Middle Aged; D010014:Osteolysis / Q000209:etiology*
chemical_list: D004967:Estrogens