Garcia RT, et al. : Unsedated ultrathin EGD is well accepted when compared with conventional sedated EGD : a multicenter randomized trial. Gastroenterology 125:1606-1612, 2003
Yagi J, et al.: A prospective randomized comparative study on the safety and tolerability of transnasal esophagogastroduodenoscopy. Endoscopy 37:1226-1231, 2005
Kawai Y, et al.: Linked color imaging effectively detects the endoscopic atrophic border in transnasal endoscopy. J Clin Biochem Nutr : 2022 (in press)
Kawai T :Improved transnasal examination of the upper gastrointestinal tract through advancements in ultrathin endoscopes. Dig Endosc : 2021 (online ahead of print)