Seong Woo Jeon
1 
, Su Jin Hong
2 
, Soo Teik Lee
3 
, Hyungkil Kim
4 
, and Hoon Jai Chun
5
1Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu,
2Department of Internal Medicine, Soonchunhyang University College of Medicine, Bucheon,
3Department of Internal Medicine, Chonbuk National University Hospital, Jeonju,
4Department of Internal Medicine, Inha University Hospital, Incheon, and
5Department of Internal Medicine, Institute of Gastrointestinal Medical Instrument Research, Korea University College of Medicine, Seoul, Korea, Research Group for Endoscopic Submucosal Dissection in Korean Society of Gastrointestinal Endoscopy
Hoon Jai Chun
Department of Internal Medicine, Institute of Gastrointestinal Medical Instrument Research, Korea University College of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul 02841, Korea
Tel: +82-2-920-6555, Fax: +82-2-953-1943, E-mail:
drchunhj@gmail.com