1. The advanced trauma life support student manual;The Committee on Trauma of the American College of Surgeons,1989
2. Lack of cough reflex in aspiration pneumonia;Sekizawa;Lancet,1990
3. Effect of oral diazepam on the sensitivity of upper airway reflexes;Murphy;Br J Anaesth,1993
4. A synopsis of anaesthesia;Atkinson,1987
5. Intensive care: management of the unconscious patient;Bradley,1987