@article{article1cac5b90,
title   = {Modelo de la frecuencia cardiaca anteparto en gestantes consideradas normales},
author = {Chufalo, E J and Mauad Filho, F and Cunha, S P and Muccillo, Gerson},
year = {1987},
journal   = {Revista Espanola de Obstetricia Y Ginecologia}
}