What is the impact of interventions that prevent fetal mortality on the increase of preterm live births in the State of Sao Paulo, Brazil? - Alencar, Gizelton Pereira; Silva, Zilda Pereira da; Santos, Patrícia Carla dos; Raspantini, Priscila Ribeiro; Moura, Bárbara Laisa Alves; Almeida, Marcia Furquim de; Nascimento, Felipe Parra do; Rodrigues, Laura C (BMC Pregnancy and Childbirth, 2015)