Study of IgG anti P. falciparum antibodies avidity in serum samples from people living in endemic area - Sanchez, Maria Carmen Arroyo; Amuk, Viviana G.; Durfacher, Rui R.; Ogando, Sandra L. A.; Mendoza, Tânia R. Tozetto; Cunha, Maria L. O. N.; Moraes-Ávila, Sandra do Lago; Ferreira, Antônio Walter (International Congress for Tropical Medicine and Malaria, XVth, 2000)