RT Journal Article SR Electronic T1 Various vitamin and mineral supplements are observed to increase mortality risk in older women, with the exception of calcium, which decreases risk JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 79 OP 79 DO 10.1136/ebnurs-2011-100438 VO 15 IS 3 A1 Neva L Crogan YR 2012 UL http://ebn.bmj.com/content/15/3/79.abstract AB