[1] Sanjay Gandhi Post Grad Inst Med Sci, Dept Radiodiag, Lucknow 226014, Uttar Pradesh, India
[2] Sanjay Gandhi Post Grad Inst Med Sci, Dept Pediat Gastroenterol, Lucknow 226014, Uttar Pradesh, India
[3] Univ Calif Los Angeles, David Geffen Sch Med, Dept Radiol Sci, Los Angeles, CA 90024 USA
[4] Sanjay Gandhi Post Grad Inst Med Sci, Dept Biostat, Lucknow 226014, Uttar Pradesh, India
[5] Sanjay Gandhi Post Grad Inst Med Sci, Dept Surg Gastroenterol, Lucknow 226014, Uttar Pradesh, India
[6] Sanjay Gandhi Post Grad Inst Med Sci, Dept Gastroenterol, Lucknow 226014, Uttar Pradesh, India