1. Changing Epidemiology of Upper Gastrointestinal Bleeding (UGI) in Patients Hospitalized in California: Population Based Study From  
John Lee, Sanjay Reddy, Namgyal Kyulo 
Gastrointestinal Endoscopy 
Volume 61, Issue 5, (April 2005)
DOI: /S (05)
Copyright © 2005 American Society for Gastrointestinal Endoscopy Terms and Conditions

2. Gastrointestinal Endoscopy 2005 61, DOI: (10
Gastrointestinal Endoscopy  , DOI: ( /S (05) )
Copyright © 2005 American Society for Gastrointestinal Endoscopy Terms and Conditions