RT Journal Article SR Electronic T1 Increased calcium intake was associated with decreased risk of ischaemic heart disease mortality in postmenopausal women JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 131 OP 131 DO 10.1136/ebn.2.4.131 VO 2 IS 4 YR 1999 UL http://ebn.bmj.com/content/2/4/131.abstract AB