RT Journal Article SR Electronic T1 Calcium supplements may increase the risk of cardiovascular events in postmenopausal women JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 16 OP 17 DO 10.1136/ebm.2011.100113 VO 17 IS 1 A1 Boucher, Barbara J YR 2012 UL http://ebm.bmj.com/content/17/1/16.abstract AB