Factores de riesgo de hemorragia digestiva alta en el Hospital de Belén de Trujillo 2005–2009. PUEBLO CONTINENTE, [S. l.], v. 22, n. 2, p. 469–477, 2016. Disponível em: https://journal.upao.edu.pe/index.php/PuebloContinente/article/view/438.. Acesso em: 21 jan. 2025.