Ferreira, V. A., S. Acioli, A. Heringer, and A. L. . S. Barros. “The SUS Principles and the Educative Practices of Nurses in the Family Health Program. A Qualitative Study.”. Online Brazilian Journal of Nursing, vol. 5, no. 3, Dec. 2006, doi:10.17665/1676-4285.2006469.