Alves, Rosane R.F., et al. “Performance of the Cytology and Colposcopy Compared to Histopathology in Screening and Diagnosis of câncer Precursor Lesions”. Brazilian Journal of Sexually Transmitted Diseases, vol. 14, no. 6, Oct. 2002, pp. 33-38, https://bdst.emnuvens.com.br/revista/article/view/446.