PT - JOURNAL ARTICLE AU - Elisabeth Westerdahl AU - Arne Tenling TI - Preoperative physical therapy reduces risk of postoperative atelectasis and pneumonia in people undergoing elective cardiac surgery AID - 10.1136/eb-2012-101199 DP - 2013 Mar 01 TA - Evidence Based Nursing PG - ebnurs-2012-101199 4099 - http://ebn.bmj.com/content/early/2013/03/05/eb-2012-101199.short 4100 - http://ebn.bmj.com/content/early/2013/03/05/eb-2012-101199.full