Characterization of naturally acquired human igg responses against the n terminal region of the merozoite surface protein 1 of plsmodium vivax - Levitus, G; Mertens, F; Speranca, M A; Camargo, Luís Marcelo Aranha; Ferreira, Marcelo Urbano; Del Portillo, Hernando Antonio (American Journal of Tropical Medicine and Hygiene, 1994)