Barros, A. J. D.; Matijasevich, A.; Santos, I. S.; Albernaz, E. P.; Victora, C. G. Neonatal Mortality: Description and Effect of Hospital of Birth After Risk Adjustment . Rev. saúde pública 2008, 42 (1), 1-9. https://doi.org/10.1590/S0034-89102008000100001.