@article{article83c22412,
title   = {Vaginal progesterone for the prevention of preterm birth in twin gestations: a randomized placebo-controlled double-blind study},
author = {Brizot, Maria de Lourdes and Hernandez, Wagner Rodrigues and Liao, Adolfo Wenjaw and Bittar, Roberto Eduardo and Francisco, Rossana Pulcineli Vieira and Krebs, Vera Lucia Jornada and Zugaib, Marcelo},
year = {2015},
doi = {10.1016/j.ajog.2015.02.021},
journal   = {American Journal of Obstetrics & Gynecology}
}