@article{article2955a1cb,
title   = {Elevation of uterine basal tone and fetal heart rate abnormalities after labor analgesia: a randomized controlled trial},
author = {Abrão, Karen Cristine and Francisco, Rossana Pulcineli Vieira and Miyadahira, Seizo and Cicarelli, Domingos Dias and Zugaib, Marcelo},
year = {2009},
doi = {10.1097/AOG.0b013e3181a890b2},
journal   = {Obstetrics & Gynecology}
}