Sung Chul Park, Yoon Tae Jeen, Kwang Gyun Lee, Juhyung Kim, Jong Jin Hyun, Eun Sun Kim, Sanghoon Park, Bora Keum, Yeon Seok Seo, Yong Sik Kim, Hoon Jai Chun, Soon Ho Um, Jai Hyun Choi, Chang Duck Kim, Ho Sang Ryu
Intest Res. 2009;7(2):93-99. Published online December 30, 2009