M. R. B. Barcelos, R. de C. D. Lima, E. Tomasi, B. P. Nunes, S. M. S. Duro, and L. A. Facchini, “Quality of cervical cancer screening in Brazil: external assessment of the PMAQ”, Rev. saúde pública, vol. 51, p. 67, Jan. 2017, doi: 10.1590/s1518-8787.2017051006802.