Amaral, J. J. F. do; Victora, C. G.; Leite, Álvaro J. M.; Cunha, A. J. L. A. da. Implementation of the Integrated Management of Childhood Illnesses Strategy in Northeastern Brazil . Rev. saúde pública 2008, 42 (4), 598-606. https://doi.org/10.1590/S0034-89102008000400004.