Measles vaccine coverage and immune response in children of Caiabi and Metuktire Indian tribes living in malarial endemic area: parque indígena do Xingu, Central Brazil - Spindel, R.; Baruzzi, R. G.; Souza, V. A. U. F.; Ferreira, Antonio Walter; Moraes-Ávila, Sandra do Lago (Tropical Doctor, 2001)