Unique closure of large colonic endoscopic submucosal dissection defect using zigzag clip with line pulley securing technique - Kohei Ono, MD; Ken Ohata, MD, PhD; Yoshiaki Kimoto, MD; Nao Takeuchi, MD; Yuki Kano, MD, PhD; Yohei Minato, MD; Ryoju Negishi, MD; Hideyuki Chiba, MD, PhD (VideoGIE)