Endoscopic treatment of rectovesical fistula after colorectal anastomosis: tube-in-tube endoscopic vacuum therapy method - de Lima, Marcelo Simas; Perez, Caio Almeida; Guacho, John Alexander Lata; Flor, Marcelo Mochate; Tucci, Marina; Ferreira, Marina; Maluf-Filho, Fauze (Endoscopy, 2021)