1. Clinical Challenges and Images in GI
Erich Vorlop, MD, Jeffrey Zaidman, MD, Steven F. Moss, MD 
Gastroenterology 
Volume 135, Issue 6, (December 2008)
DOI: /j.gastro
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2. Gastroenterology 2008 135, DOI: (10.1053/j.gastro.2008.10.069)
Copyright © 2008 AGA Institute Terms and Conditions

3. Gastroenterology 2008 135, DOI: (10.1053/j.gastro.2008.10.069)
Copyright © 2008 AGA Institute Terms and Conditions

4. Gastroenterology 2008 135, DOI: (10.1053/j.gastro.2008.10.069)
Copyright © 2008 AGA Institute Terms and Conditions