1.
Silveira MF, Santos IS, Barros AJD, Matijasevich A, Barros FC, Victora CG. Increase in preterm births in Brazil: review of population-based studies . Rev. saúde pública [Internet]. 2008 Oct. 1 [cited 2024 May 10];42(5):957-64. Available from: https://www.revistas.usp.br/rsp/article/view/32520