title: How important is dietary calcium in preventing osteoporosis?
mesh_terms: D000328:Adult; D000368:Aged; D002136:Calcium, Dietary / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010024:Osteoporosis / Q000517:prevention & control*
chemical_list: D002136:Calcium, Dietary