1. Volume 142, Issue 3, Pages 482-489 (March 2012)
Higher Predicted Vitamin D Status Is Associated With Reduced Risk of Crohn's Disease 
Ashwin N. Ananthakrishnan, Hamed Khalili, Leslie M. Higuchi, Ying Bao, Joshua R. Korzenik, Edward L. Giovannucci, James M. Richter, Charles S. Fuchs, Andrew T. Chan 
Gastroenterology 
Volume 142, Issue 3, Pages (March 2012)
DOI: /j.gastro
Copyright © 2012 AGA Institute Terms and Conditions

2. Figure 1
Flow of potential cases of incident Crohn's disease or ulcerative colitis.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2012 AGA Institute Terms and Conditions