Perinatal Outcomes and Factors Associated with Ethnic Group in cases of Preterm Birth: the Multicenter Study on

Karayna Gil Fernandes1,2, Renato Teixeira Souza1, Renato Passini1

  • 1Department of Obstetrics and Gynecology, Faculdade de Ciências Médicas, Universidade Estaudual de Campinas, Campinas, SP, Brazil.

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