[P-432] The clinical feature of the exposed vessels in ulcer base after prophylactic Argon plasma coagulation in colonic EMR
○Yunho Jung, Il-Kwon Chung, Young Sin Cho, Tae Hoon Lee, Sang-Heum Park, Baek-gyu Jun, Sun-joo Kim(Dept. of Internal Medicine, Soonchunhyang University, Cheonan, Republic of Korea)
