RT Journal Article SR Electronic T1 Skin protection wheelchair cushions for older nursing home residents reduce 6-month incidence of ischial tuberosity pressure ulcers compared with segmented foam cushions JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 79 OP 80 DO 10.1136/ebn1167 VO 14 IS 3 A1 Beeckman, Dimitri A1 Vanderwee, Katrien YR 2011 UL http://ebn.bmj.com/content/14/3/79.abstract AB