1. The critical incident technique;Flanagan;Psychol Bull,1954
2. Preventable anesthesia mishaps;Cooper;Anesthesiology,1978
3. An analysis of major errors and equipment failures in anesthesia management;Cooper;Anesthesiology,1984
4. Incidence of mortality and morbidity due to anaesthetic equipment failure;Sykes;Eur J Anaesthesiol,1987
5. Detection of anesthesia machine faults;Buffington;Anesth Analg,1984