RT Journal Article SR Electronic T1 Reducing stress burden and objective burden in spousal caregivers through implementation of Powerful Tools for Caregivers JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 107 OP 108 DO 10.1136/ebn.2011.100088 VO 14 IS 4 A1 Linda A Gerdner YR 2011 UL http://ebn.bmj.com/content/14/4/107.abstract AB