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Brazilian multicenter study on prevalence of preterm birth and associated factors

Renato Passini*, Ricardo P Tedesco, Sergio T Marba, Jose G Cecatti, Ruth Guinsburg, Francisco E Martinez, Marcelo L Nomura and the Brazilian Network of Studies on Reproductive and Perinatal Health

BMC Pregnancy and Childbirth 2010, 10:22  doi:10.1186/1471-2393-10-22

Pre-publication versions of this article and reviewers' reports

Original Submission - Version 1 02 Mar 2010
Reviewer's Report Pisake Lumbiganon 10 Apr 2010
Resubmission - Version 2 Manuscript Author's comment 16 Apr 2010
Reviewer's Report Pisake Lumbiganon 01 May 2010
Editorial acceptance 03 May 2010
Published 19 May 2010