@article{article390b33e3,
title   = {Mortalidade materna: analise de 56 casos},
author = {Barros, Alfredo Carlos Simões Dornellas de and Bortolotto, M R F L and Goncalves, S R and Zugaib, Marcelo},
year = {1990},
journal   = {Revista de Ginecologia e Obstetricia}
}