Lee, Dong Seok
Park, Jong Kyu
Lee, Sang Jin
Cheon, Gab Jin
Article History
Received: 8 December 2018
Accepted: 20 February 2020
First Online: 5 March 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of the Gangneung Asan Hospital in Korea, and all patients provided a written informed consent for the use of personal information in manuscripts. All patients provided informed consent before endoscopic examination. All patients who agreed to participate in this study were included in the study.
: Abstract has already been published [CitationRef removed]
: All authors have no actual or potential conflict of interest including any financial, personal or other relationships with other people or organizations.