1. Guidelines for advanced endoscopic training. Manchester, Mass., The American Society for Gastrointestinal Endoscopy, July 1994
2. Guidelines for enhancement of endoscopic skills. Manchester, Mass., The American Society for Gastrointestinal Endoscopy, July 1993
3. Training in ERCP;Leung;Gastrointest Endosc,1992
4. Principles of training in gastrointestinal endoscopy. Manchester, Mass., The American Society for Gastrointestinal Endoscopy, May 1991
5. Advanced training programs in gastrointestinal endoscopy;Sivak;Gastrointest Endosc,1993