1. The effect of endotracheal suctioning on arterial blood gases in patients after cardiac surgery;Adlkofer;Heart Lung,1978
2. Effect of lung hyperinflation and endotracheal suctioning on heart rate and rhythm in patients after coronary artery bypass graft surgery;Stone;Heart Lung,1991
3. Barotrauma, a potential hazard of manual resuscitators;Klick;Anesthesiology,1978
4. The Brompton Hospital guide to chest physiotherapy;Webber,1988
5. Chest physiotherapy by the ‘bag squeezing’ method;Clement;Physiotherapy,1968