Dr. Kerolos Youssef William Zaki is a Specialist in Internal Medicine, Gastroenterology, and Hepatology at Cairo University (Kasr Al Ainy Hospital). He graduated with honors in 2009, completed his Master’s in Internal Medicine in 2015, and earned his M.D. in Gastroenterology in 2021. Over the years, he has gained broad clinical experience in managing complex liver diseases, following up liver transplant patients, critical care, and advanced endoscopic procedures. Dr. Kerolos is also certified in BLS, ACLS, and ITLS, and has actively contributed to medical education through organizing conferences and endoscopy workshops at Cairo University.