Deep-breathing exercises reduce atelectasis and improve pulmonary function after coronary artery bypass surgery
Westerdahl E, Lindmark B, Eriksson T, Friberg O, Hedenstierna G, Tenling A. Deep-breathing exercises reduce atelectasis and improve pulmonary function after coronary artery bypass surgery. Chest. 2005;128(5):3482-3488. doi:10.1378/chest.128.5.3482