Soumya Chatterjee, Sibnarayan Datta, Sonika Sharma, Sarika Tiwari and Dharmendra K. Gupta
. Cellular immune responses are essential for the development of Helicobacter felis associated gastric pathology. J Immunol. 1999;163:1490-1497. http://www.jimmunol.org/content/163/3/1490 .
 Mannick EE, Bravo LE, Zarama G, Realpe JL, Zhang XJ, Ruiz B, et al. Inducible nitric oxide synthase, nitrotyrosine, and apoptosis in Helicobacter pylori Gastritis: effect of antibiotics and antioxidants. Cancer Res. 1996;56:3238-3243. http://cancerres.aacrjournals.org/content/56/14/3238.long .
 Bartsch H, Nair J. Chronic inflammation and oxidative stress in the