Endogenous Ethanol Production Levels in Saudi Arabia Residents Ahmed R Ragab 1,2 *, Maha K Al-Mazroua 1 , Mostafa M Afify 1,3 , Ismaiel Al Saeed 1 and Calrole Katbai 1 1 Dammam Poison Control Centre, Dammam, Eastern Region, Ministry of Health, Saudi Arabia