Silva, A. Rafael da, Geraldo Martins, José Evandro Machado Melo, Juarez Pereira de Araujo, José Ribamar Mendes, and Maria das Graças Mendes. 1979. “Outbreak of American Tegumentary Leisbmaniasis in an Agrarian Colonization Project, State of Maranhão, Brasil”. Revista Do Instituto De Medicina Tropical De São Paulo 21 (1): 43-50. https://revistas.usp.br/rimtsp/article/view/197361.