@article{articlecb1d8873,
title   = {Searching for the optimal rate of medically necessary cesarean delivery},
author = {YE, Jiangfeng and Betrán, Ana Pilar and Vela, Miguel Guerrero and Souza, João Paulo Dias de and Zhang, Jun},
year = {2014},
doi = {10.1111/birt.12104},
journal   = {Birth}
}