Preface Gastrointestinal Endoscopy Clinics Grace H. Elta, MD Gastrointestinal Endoscopy Clinics Volume 19, Issue 2, Pages xiii-xiv (April 2009) DOI: 10.1016/j.giec.2009.03.002 Copyright © 2009 Elsevier Inc. Terms and Conditions
Grace H. Elta, MD Gastrointestinal Endoscopy Clinics 2009 19, xiii-xivDOI: (10.1016/j.giec.2009.03.002) Copyright © 2009 Elsevier Inc. Terms and Conditions
Kenneth K. Wang, MD Guest Editors Gastrointestinal Endoscopy Clinics 2009 19, xiii-xivDOI: (10.1016/j.giec.2009.03.002) Copyright © 2009 Elsevier Inc. Terms and Conditions