Study of ideal topical pharyngeal anesthesia in upper gastrointestinal system endoscopy: A double-blind, randomized, controlled trial
Hakan Çam, Seda Pehlivan, Muhammed Sait Dağ, Nimet Yılmaz, Umut Demir, Murat Taner Gülşen
(Turk J Gastroenterol 2016; 27: 103-107) DOI: 10.5152/tjg.2015.150322