pre-vaccination epidemiology of human papillomavirus infections in japanese women with abnormal cytology. | aim: to investigate the pre-vaccination epidemiology of genital human papillomavirus (hpv) infections and genotypes in women with abnormal cytology in nagasaki, japan. material and methods: we performed pap smear tests, biopsies and hpv genotype testing in nagasaki prefecture from august 2007 through november 2009. results: during the study period, serial samples of uterine cervical specimens were obtained from 539 subjects with abnormal cytology and/or squamous intraepithelial lesions (sil) ... | 2011 | 21793993 |