1. 1. Pagliano P, Ascione T, Boccia G, De Caro F, Esposito S. Listeria monocytogenes meningitis in the elderly: epidemiological, clinical and therapeutic findings. Infez Med 24: 105-111, 2016.
2. 2. Hamer DH, Gorbach SL. Infectious diarrhea and bacterial food poisoning. In: Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 7th ed. Feldman M, Friedman LS, Sleisenger MH, Eds. WB Saunders, Philadelphia, PA, 2002: 1864-1913.
3. 3. Song Y, Shi YH, He C, et al. Severe Henoch-Schönlein purpura with infliximab for ulcerative colitis. World J Gastroenterol 21: 6082-6087, 2015.
4. 4. Hanauer SB. Inflammatory bowel disease. N Engl J Med 334: 841-848, 1996.
5. 5. Timmer A, Patton PH, Chande N, McDonald JW, MacDonald JK. Azathioprine and 6-mercaptopurine for maintenance of remission in ulcerative colitis. Cochrane Database Syst Rev 5: CD000478, 2016.