Make no bones about it, calcium supplements still count.
D000368:Aged; D002136:Calcium, Dietary / Q000008:administration & dosage*; D002986:Clinical Trials as Topic; D003110:Colonic Neoplasms / Q000517:prevention & control; D019587:Dietary Supplements; D005260:Female; D006620:Hip Fractures / Q000517:prevention & control; D006801:Humans; D008875:Middle Aged; D015663:Osteoporosis, Postmenopausal / Q000517:prevention & control*; D014807:Vitamin D / Q000008:administration & dosage*
D002136:Calcium, Dietary; D014807:Vitamin D