1. Recent trends in the prevalence of Crohn's disease and ulcerative colitis in a commercially insured US population;Kappelman;Dig Dis Sci,2013
2. Role of thiopurine metabolite testing and thiopurine methyltransferase determination in pediatric IBD;Benkov;J Pediatr Gastroenterol Nutr,2013
3. A multicenter trial of 6-mercaptopurine and prednisone in children with newly diagnosed Crohn's disease;Markowitz;Gastroenterology,2000
4. Meta-analysis: the efficacy of azathioprine and mercaptopurine in ulcerative colitis;Gisbert;Aliment Pharmacol Ther,2009
5. The impact of introducing thioguanine nucleotide monitoring into an inflammatory bowel disease clinic;Smith;Int J Clin Pract,2013