Lee H J, Jung E S, Park M S, Chung H S, Choi J Y, Lee K J, Lee J S, Kil H K, Lee Y C
Division of Gastroenterology, Institute of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea.
Endoscopy. 2011;43 Suppl 2 UCTN:E53-4. doi: 10.1055/s-0030-1256058. Epub 2011 Feb 1.