(1)
İbiş, M.; Arhan, M.; İbiş, T.; Önal, İbrahim K.; Erdal, H.; Utku, Özlem G. Lidocaine Versus Lidocaine Plus Benzydamine As a Topical Anesthesia Regimen for Unsedated Upper Gastrointestinal Endoscopy: A Comparison Study. Turkish Journal of Gastroenterology 2015, 26, 224-227.