G. Eisen

Patient-controlled analgesia for conscious sedation during endoscopic retrograde cholangiopancreatography: a randomized controlled trial.

J. Onken, P. Jowell, B. Ginsberg, 1996, Gastrointestinal endoscopy.

Guideline for the Management of Ingested Foreign Bodies.

G. Eisen, 1995, Gastrointestinal endoscopy.

A Pooled Analysis to Evaluate Results of Capsule Endoscopy Trials

B. Lewis, S. Friedman, G. Eisen, 2007 .