Endoscopic hemostasis of a bleeding gastric gastrointestinal stromal tumor (GIST) with endoloop placement oleh Felipe Alves RETES, Bruno da Costa MARTINS, Mauricio Paulin SORBELLO, Cezar Fabiano Manabu SATO, Fabio Shiguehissa KAWAGUTI, Fauze MALUF-FILHO, Ulysses RIBEIRO-JUNIOR