@article{article1ef0e951, title = {A protocol to identify non-classical risk factors for preterm births: the brazilian Ribeirão Preto and São Luís prenatal cohort (BRISA)}, author = {Silva, Antonio Augusto Moura da and Simões, Vanda Maria Ferreira and Barbieri, Marco Antonio and Cardoso, Viviane Cunha and Alves, Claudia Maria Coelho and Thomaz, Erika Bárbara Abreu and Queiroz, Rejane Christine de Sousa and Cavalli, Ricardo de Carvalho and Batista, Rosângela Fernandes Lucena and Bettiol, Heloisa}, year = {2014}, doi = {10.1186/1742-4755-11-79}, journal = {Reproductive Health} }