ALVES, Jose Antonio Barreto et al. Pap Smears: Frequency of Gardnerella Vaginalis, Candida spp., Trichomonas Vaginalis and Pill Use or Copper Intrauterine Device Use. International Archives of Medicine, [S.l.], v. 9, dec. 2016. ISSN 1755-7682. Available at: <http://imed.pub/ojs/index.php/iam/article/view/1830>. Date accessed: 19 feb. 2020. doi: http://dx.doi.org/10.3823/2231.