Contardo Zambrano, Carlos, and Hernán Espejo Romero. “Nonvariceal Upper Gastrointestinal Bleeding”. ACTA MEDICA PERUANA 23, no. 3 (May 22, 2024): 162 - 173. Accessed November 1, 2024. http://54.39.98.165/index.php/AMP/article/view/1191.