PCR diagnosis of HPV in cervical biopsies of CIN and invasive neoplasia formely diagnosed as HPV negative - Bettini, Jussara de Sousa Ribeiro; Soares, Edson Garcia; Duarte, Geraldo; Simões, Renata Toscano; Simões, Aguinaldo Luiz (Acta Cytologica, 2003)