P. A. de Moraes, M. R. Bertolozzi, and P. Hino, “Perceptions of primary health care needs according to users of a health center”, Rev. Esc. Enferm. USP, vol. 45, no. 1, pp. 19–25, Mar. 2011, doi: 10.1590/S0080-62342011000100003.