1. Appropriateness of diagnostic digestive endoscopy;Lambert;Dig Dis,2002
2. Appropriate use of gastrointestinal endoscopy;American Society for Gastrointestinal Endoscopy;Gastrointest Endosc,2000
3. The effect of equianalgesic doses of fentanyl, morphine, meperidine, and pentazocine on common bile duct pressure;Radnay;Anaesthetist,1980