[P35] 胃　ESD3

[P-171] Learning curve of ESD for early gastric cancer

^○Ryoji Fujii, Tetsuya Sumiyoshi, Takeyoshi Minagawa, Shinya Fujie, Tomohiro Kimura, Hideyuki Ihara, Naohito Yoshizaki, Michiaki Hirayama, Hitoshi Kondo (Dept. of Gastroenterology, Tonan Hospital, Sapporo, Japan)