[1] Ibrahim Bin Hamad Obaid Allah Hosp, Gastroenterol & Endoscopy Dept, Minist Hlth & Prevent, Ras Al Khaiman, U Arab Emirates
[2] Sheikh Shakbout Med City, Dept Gastroenterol, Abu Dhabi, U Arab Emirates
[3] Valiant Clin, Dept Gastroenterol, City Walk 13th St, Dubai, U Arab Emirates
[4] Al Zahra Hosp, Gastroenterol & Endoscopy Unit, Dubai, U Arab Emirates
[5] Sheikh Khalifa Med City, Gastroenterol Div, Abu Dhabi, U Arab Emirates
[6] Rashid Hosp, Digest Dis Unit, Dubai, U Arab Emirates
[7] Cleveland Clin, Digest Dis Inst, Abu Dhabi, U Arab Emirates
[8] Mediclin City Hosp, Dept Gastroenterol, Dubai, U Arab Emirates
[9] Tawam Hosp, Gastroenterol & Hepatol, Al Ain, U Arab Emirates
[10] Univ Manchester, Pennine Acute Hosp NHS Trust, Manchester Acad Hlth Sci, Dept Gastroenterol, Manchester M8 5RB, Lancs, England