@article{article9d4a4efc,
title   = {Placenta previa: aspectos obstetricos},
author = {Duarte, Geraldo and Rocha, J E S and Cunha, S P and Nogueira, A A and Mauad Filho, F and Patta, M C},
year = {1996},
journal   = {Revista Brasileira de Ginecologia e Obstetricia}
}