1. Preliminary study of closed claims;American Society of Anesthesiologists, Committee on Professional Liability;ASA Newsletter,1988
2. ASA Patient Safety Videotape No. 15, The Difficult Airway, Part One;ASA Committee on Patient Safety and Risk Management's Task Force on the Difficult Airway,1991
3. The Consultant Anesthesiologist: A New Profile for the Profession of Anesthesiology;Mark,1991
4. Predicting difficult intubation;Wilson;Br J Anaesth,1988
5. A clinical sign to predict difficult intubation: a prospective study;Mallampati;Can Anaesth Soc J,1985