Saline-Assisted Endoscopic Resection of Rectal Carcinoids: Cap Aspiration Method Versus Simple Snare Resection - Nagai, T; Torishima, R; Nakashima, H; Ookawara, H; Uchida, A; Kai, S; Sato, R; Murakami, K; Fujioka, T (Endoscopy, 2004)