Choudhary Narendra S, Kumar Navin, Puri Rajesh
Institute of Digestive and Hepatobiliary Sciences, Medanta The Medicity, Gurgaon, India.
Institute of Microbiology, Medanta The Medicity, Gurgaon, India.
Gastroenterology. 2014 Mar;146(3):e12-3. doi: 10.1053/j.gastro.2013.10.007. Epub 2014 Jan 24.