1. Initiating Azathioprine for Crohn's Disease
Barrett G. Levesque, Edward V. Loftus 
Clinical Gastroenterology and Hepatology 
Volume 10, Issue 5, Pages (May 2012)
DOI: /j.cgh
Copyright © 2012 AGA Institute Terms and Conditions

2. Figure 1
Histogram of 407 patients in New Zealand indicates the number of patients confirmed as homozygous deficient (white), confirmed heterozygous (black), normal genotype (grey), not genotyped (black horizontal stripes), vs TPMT enzyme activity.
Reprinted with permission from Sies et al.3
Clinical Gastroenterology and Hepatology  , DOI: ( /j.cgh )
Copyright © 2012 AGA Institute Terms and Conditions

3. Figure 2 Algorithm: initiating AZA in CD 11.
Clinical Gastroenterology and Hepatology  , DOI: ( /j.cgh )
Copyright © 2012 AGA Institute Terms and Conditions