TY - JOUR T1 - Mutations in Plasmodium falciparum dihydrofolate reductase and dihydropteroate synthase of isolates from the Amazon Region of Brazil JO - Memórias do Instituto Oswaldo Cruz A1 - Vasconcelos, KF A1 - Plowe, CV A1 - Fontes, CJ A1 - Kyle, D A1 - Wirth, DF A1 - Pereira da Silva, LH A1 - Zalis, MG SN - 0074-0276 UL - 10.1590/S0074-02762000000500020 VL - 95 Y1 - 2000 PB - Brasil ER -