Endoscopic Induction of Mucosal Fibrosis by Argon Plasma Coagulation (APC) for Esophageal Varices: A Prospective Randomized Trial of Ligation plus APC vs. Ligation Alone - Nakamura, S.; Mitsunaga, A.; Murata, Y.; Suzuki, S.; Hayashi, N. (Endoscopy, 2001)