Goyal Gopal, Narayan Kumar Shwetanshu, Gupta Gaurav Kumar, Nijhawan Sandeep
Department of Gastroenterology, Sawai Man Singh Medical College, J.L.N. Marg, Jaipur, 302 004, India.
Indian J Gastroenterol. 2017 Jul;36(4):326. doi: 10.1007/s12664-017-0766-0.