@article{article07741358,
title   = {Survey of parvovirus B19 infection in a cohort of pregnant women in Belém, Brazil},
author = {Freitas, Ronaldo Barros de and Gusmão, Silvio Romero Buarque de and Durigon, Edison Luiz and Linhares, Alexandre C.},
year = {1999},
journal   = {Brazilian Journal of Infectious Diseases}
}