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 - 2014 Jan 01 TA - Evidence Based Nursing PG - 13--14 VI - 17 IP - 1 4099 - http://ebn.bmj.com/content/17/1/13.short 4100 - http://ebn.bmj.com/content/17/1/13.full SO - Evid Based Nurs2014 Jan 01; 17