Utilization of the emergency room: impact of geographic distance. Geospatial Health, [S. l.], v. 1, n. 2, p. 243–253, 2007. DOI: 10.4081/gh.2007.272. Disponível em: https://www.geospatialhealth.net/gh/article/view/272. Acesso em: 24 jun. 2025.