Kichul Yoon, Nayoung Kim, Ju Yup Lee, Dong Hyun Oh, A Young Seo, Chang Yong Yun, Hyuk Yoon, Cheol Min Shin, Young Soo Park, Dong Ho Lee

Korean J Gastroenterol.2018;72(3):121-127.   Published online 2018 September 21     DOI: http://dx.doi.org/10.4166/kjg.2018.72.3.121