Palabras claves: Cervical length, pbkp_rediction, Preterm delivery, Pulsatility index, Uterine artery
Autores: Briceño-Pérez C., Danaisy Cabrera Montes de Oca, Isoled Herrera-Pineda, Mejía-Montilla J., Reyna-Villasmil E., Reyna-Villasmil N., Rondón-Tapia M., Torres-Cepeda D.