HPV infection and cervical neoplasia: associated risk factors - Ribeiro, Andrea Alves; Costa, Maria Cecília; Alves, Rosane Ribeiro Figueiredo; Villa, Luísa Lina; Saddi, Vera Aparecida; Carneiro, Megmar Aparecida dos Santos; Zeferino Luiz Carlos; Rabelo-Santos, Sílvia Helena (Infectious Agents and Cancer, 2015)