Low Bifidobacterium Abundance in the Lower Gut Microbiota Is Associated With Helicobacter pylori-Related Gastric Ulcer and Gastric Cancer oleh T. Barani Devi, Krishnadas Devadas, Meekha George, A. Gandhimathi, Deepak Chouhan, Deepak Chouhan, R. J. Retnakumar, R. J. Retnakumar, Sneha Mary Alexander, Jijo Varghese, Sanjai Dharmaseelan, Sivakumar Krishnankutty Chandrika, V. T. Jissa, Bhabatosh Das, G. Balakrish Nair, Santanu Chattopadhyay