da Cruz, Emanuel, Indira Eugénia Eduardo, Francisco Panzo, André Domingos Faucatino, and Stephany Lukeni e Silva. 2025. “Duodenal Ulcer Complicated With Massive Upper Gastrointestinal Bleeding: Case Report”. Brazilian Journal of Case Reports 5 (1):bjcr87. https://doi.org/10.52600/2763-583X.bjcr.2025.5.1.bjcr87.