title: Preventive medicine: osteoporosis.
authors.forename: T W
authors.initials: TW
authors.lastname: Allen
mesh_terms: D000368:Aged; D002136:Calcium, Dietary / Q000008:administration & dosage; D004967:Estrogens / Q000627:therapeutic use; D005260:Female; D006801:Humans; D008875:Middle Aged; D010024:Osteoporosis / Q000517:prevention & control*; D005082:Physical Exertion
chemical_list: D002136:Calcium, Dietary; D004967:Estrogens