@article{articlea86112bd,
title   = {Methodological issues on planning and running the brazilian multicenter study on preterm birth},
author = {Lajos, Giuliane J and Tedesco, Ricardo P and Passini Junior, Renato and Dias, Tabata Z and Nomura, Marcelo L and Rehder, Patrícia M and Haddad, Samira M and Sousa, Maria H and Cecatti, Jose G and Martinez, Francisco Eulógio and Quintana, Silvana Maria},
year = {2015},
doi = {10.1155/2015/719104},
journal   = {The Scientific World Journal}
}