TC-325 hemostatic powder in the management of upper gastrointestinal malignant bleeding: a randomized controlled trial oleh Bruno Costa Martins, Andressa Abnader Machado, Rodrigo Corsato Scomparin, Gustavo Andrade Paulo, Adriana Safatle-Ribeiro, Sebastian Naschold Geiger, Luciano Lenz, Marcelo Simas Lima, Caterina Pennacchi, Ulysses Ribeiro, Alan N. Barkun, Fauze Maluf-Filho