@article{article3786effe,
title   = {Brazilian multicentre study on preterm birth (EMIP): prevalence and factors associated with spontaneous preterm birth},
author = {Passini Júnior, Renato and Cecatti, José G. and Lajos, Giuliane J. and Tedesco, Ricardo P. and Nomura, Marcelo L. and Dias, Tabata Z. and Haddad, Samira M. and Rehder, Patricia M. and Pacagnella, Rodolfo de Carvalho and Sousa, Maria H. and Martinez, Francisco Eulógio and Quintana, Silvana Maria},
year = {2014},
doi = {10.1371/journal.pone.0109069},
journal   = {PLOS One}
}