Gastrointestinal manifestations of COVID-19 in a single center in the Eastern Province of Saudi Arabia oleh Reem J Al Argan, Mona H Ismail, Dania M Alkhafaji, Raed M Alsulaiman, Fatimah E Ismaeel, Reem S AlSulaiman, Ali N Almajid, Lameyaa Alsheekh, Tariq S Alsaif, Alaa A Alzaki, Safi G Alqatari, Abrar J Alwaheed, Abir H Al Said, Marwan J Al Wazzeh, Abdulaziz A AlQurain