title: Error in photodensitometric bone density.
mesh_terms: D000368:Aged; D001862:Bone Resorption; D001842:Bone and Bones / Q000032:analysis / Q000000981:diagnostic imaging*; D002118:Calcium / Q000032:analysis; D002136:Calcium, Dietary / Q000627:therapeutic use*; D003720:Densitometry / Q000379:methods; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D010024:Osteoporosis / Q000178:diet therapy*; D011859:Radiography
chemical_list: D002136:Calcium, Dietary; D002118:Calcium