Affiliation: | Mohammed I Yasawy,Department of Internal Medicine,Dammam University Hospital,Al-Khobar 31952,Saudi Arabia Abdelrahman E Mohammed,Consultant Gastroenterologist,Riyadh Military Hospital,Riyadh 11159,Saudi Arabia Sammak Bassam,Department of Radiology,Saudi Arabia Mohammed A Karawi,Department of Gastroenterology,Saudi Arabia Sohail Shariq,King Fahd Military Medical Complex,Dhahran 31932,Saudi Arabia |