1. Endoscopic cannulation of the ampulla of Vater;McCune;Gastrointest Endosc,1988
2. In the beginning;Kawai;Gastrointest Endosc,2000
3. Back to the future: the first papillotomy at Erlangen;Classen;Gastrointest Endosc,2000
4. Matthes K, Cohen J. The Neo-Papilla™—a new modification of porcine ex-vivo simulators for ERCP training. Gastrointest Endosc, in press.
5. Quantitative assessment of procedural competence. A prospective study of training in endoscopic retrograde cholangiopancreatography;Jowell;Ann Intern Med,1996