Randomized controlled trial of hemostatic powder versus endoscopic clipping for non-variceal upper gastrointestinal bleeding - Baracat, Felipe Iankelevich; Moura, Diogo Turiani Hourneaux de; Brunaldi, Vitor Ottoboni; Tranquillini, Caio Vinicius; Baracat, Renato; Sakai, Paulo; Moura, Eduardo Guimaraes Hourneaux de (Surgical endoscopy and other interventional techniques, 2020)