Prevalence, age distribution and risk factors of high risk human papillomavirus infection among women in Brazil - Rama, C; Roteli-Martins, Cecilia Maria; Derchain, S; Aldrighi, José Mendes; Syrjanen, K; Longatto Filho, A; Gontijo, R; Sarian, L; Lima, T (EUROGIN International Multidisciplinary Congress: human papillomavirus infection and global prevention of cervical cancer: priorities, practice and new directions, 2006)