1. Volume 129, Issue 3, Pages 863-873 (September 2005)
Randomized, Placebo-Controlled, Esophageal Squamous Cell Cancer Chemoprevention Trial of Selenomethionine and Celecoxib 
Paul J. Limburg, Wenqiang Wei, Dennis J. Ahnen, Youlin Qiao, Ernest T. Hawk, Guoqing Wang, Carol A. Giffen, Guiqi Wang, Mark J. Roth, Ning Lu, Edward L. Korn, Yurong Ma, Kathleen L. Caldwell, Zheiwei Dong, Philip R. Taylor, Sanford M. Dawsey 
Gastroenterology 
Volume 129, Issue 3, Pages (September 2005)
DOI: /j.gastro
Copyright © 2005 American Gastroenterological Association Terms and Conditions

2. Figure 1 Trial flow diagram.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2005 American Gastroenterological Association Terms and Conditions

3. Figure 2
Change in severity of esophageal squamous dysplasia by intervention agent. □, Progression; , stable; , regression. (A) All subjects; (B) moderate dysplasia at baseline; (C) mild dysplasia at baseline.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2005 American Gastroenterological Association Terms and Conditions

4. Figure 3
Change in severity of esophageal squamous dysplasia by intervention group. □, Progression; , stable; , regression.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2005 American Gastroenterological Association Terms and Conditions