@misc{miscfb73c64f,
title   = {Regional variation in toxoplasmosis seronegativity in Sao Paulo metropolitan area},
author = {Guimarães, A C S and Kawarabayashi, M and Borges, M M and Tolezano, J E and Andrade Júnior, Heitor Franco de},
year = {1991},
booktitle   = {Congresso da Sociedade Brasileira de Parasitologia}
}