@article{article1384e4ed,
title   = {Chagas' disease: iga, igm and igg antibodies to t.Cruzi amastigote trypomastigote and epimastigote antigens in acute and in different chronic forms of the disease},
author = {Primavera, K S C and Umezawa, Eufrosina Setsu and Peres, Benedito Anselmo and Camargo, M E and Hoshino-Shimizu, S},
year = {1990},
journal   = {Revista do Instituto de Medicina Tropical de Sao Paulo}
}