@inproceedings{inproceedingsb2fd6b6f,
title   = {The obstetric history evaluation, vaginal infections and cervical length as risk factors for preterm birth},
author = {Cavalli, Ricardo de Carvalho and Camayo, Francisco Javier Alvarez and Barbieri, Marco Antonio and Bettiol, Heloisa and Quintana, Silvana Maria and Cardoso, V. C.},
year = {2015},
booktitle   = {World Congress on Controversies in Obstetrics, Gynecology and Infertility (COGI)}
}