Letter: Prophylactic fluoride treatment and aged bones.
D000368:Aged; D001842:Bone and Bones / Q000187:drug effects; D002118:Calcium / Q000627:therapeutic use; D005459:Fluorides / Q000008:administration & dosage / Q000009:adverse effects*; D006801:Humans; D010024:Osteoporosis / Q000188:drug therapy*
D005459:Fluorides; D002118:Calcium