Saha DR, Datta S, Chattopadhyay S, Patra R, De R, Rajendran K, Chowdhury A, Ramamurthy T, Mukhopadhyay AK. Indistinguishable cellular changes in gastric mucosa between Helicobacter pylori infected asymptomatic tribal and duodenal ulcer patients. World J Gastroenterol 2009; 15(9): 1105-1112 [PMID: 19266604 DOI: 10.3748/wjg.15.1105]