Department of Internal Medicine;
Dammam University Hospital;
Al-Khobar 31952;
Saudi Arabia;
Consultant Gastroenterologist;
Riyadh Military Hospital;
Riyadh 11159;
Saudi Arabia;
Department of Radiology;
Riyadh Military Hospital;
Riyadh 11159;
Saudi Arabia;
Department of Gastroenterology;
Riyadh Military Hospital;
Riyadh 11159;
Saudi Arabia;
Department of Internal Medicine;
King Fahd Military Medical Complex;
Dhahran 31932;
Saudi Arabia;