@article{articlec3a399d6,
title   = {Secular trend of very low birth weight rate in Porto Alegre, Southern Brazil},
author = {Silva, Clécio Homrich da and Agranonik, Marilyn and Silva, Antonio Augusto Moura da and Bettiol, Heloisa and Barbieri, Marco Antonio and Goldani, Marcelo Zubaran},
year = {2010},
journal   = {Journal of Biosocial Science}
}