@article{articlee184b4bf,
title   = {Reference range for cervical length in twin pregnancies},
author = {Fujita, Mariza Marie and Brizot, Maria de Lourdes and Liao, Adolfo Wenjaw and Bernath, Tatiana Neves and Banduki Neto, Jorge Demetrio and Zugaib, Marcelo},
year = {2002},
doi = {10.1034/j.1600-0412.2002.810910.x},
journal   = {Acta Obstetricia et Gynecologica}
}