title: Letter: Osteoporosis and androgens.
mesh_terms: D000728:Androgens / Q000172:deficiency*; D001842:Bone and Bones / Q000378:metabolism; D002116:Calcitonin / Q000502:physiology; D005260:Female; D006801:Humans; D008593:Menopause; D010024:Osteoporosis / Q000209:etiology*
chemical_list: D000728:Androgens; D002116:Calcitonin