Epidemiological analysis of nosocomial infections in four health services institutions in Valledupar / Colombia, 2009-2010. Ciencia y Salud Virtual, [S. l.], v. 2, n. 1, p. 31–42, 2010. DOI: 10.22519/21455333.62. Disponível em: https://revistas.uninunez.edu.co/cienciaysalud/article/view/62. Acesso em: 23 aug. 2026.