RT Journal Article SR Electronic T1 Having a greater proportion of registered nurses in a respiratory care centre is associated with fewer urinary infections and increased successful ventilator weaning JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 27 OP 28 DO 10.1136/eb-2013-101233 VO 17 IS 1 A1 Di Twigg YR 2014 UL http://ebn.bmj.com/content/17/1/27.abstract AB