Selective Occlusion with Fibrin Glue under Fistuloscopy: Seven Cases of Postoperative Management for Intractable Complex Fistulas - Kurokawa , T; Okushiba , S; Kadoya , M; Miyamoto , D; Kurashima , Y; Kitagami , H; Ikeda , J; Sunaga , M; Shinzato , Y; Ozawa , T; Kondo , S; Katoh , H (Endoscopy, 2002)