Serra, H, A Pista, P Figueiredo, A Urbano, F Avilez, and C F De Oliveira. 2000. “Cervix Uteri Lesions and Human Papiloma Virus Infection (HPV): Detection and Characterization of DNA/HPV Using PCR (polymerase Chain Reaction”. Acta Médica Portuguesa 13 (4). Lisbon, Portugal:181-92. https://doi.org/10.20344/amp.1788.