Goya, Neusa, et al. “ Regionalization in Healthcare: (in)visibility and (im)materiality of the Universal Access and Comprehensiveness in Health in Changing Institutionalities ”. Saúde E Sociedade, vol. 25, no. 4, Dec. 2016, pp. 902-19, https://doi.org/10.1590/s0104-12902016161198.