4de Roda Husman AM, Walboomers JM, Hopman E, et al. HPV prevalence in cytomorphologically normal cervical scrapes of pregnant women as determined by PCR: the age-related pattern. J Med Virol,1995, 46:97 - 102.
5Armbruster-Moraes E, loshimoto LM, Leao E, et al. Prevalence of ′high risk′ human papillomavirus in the lower genital tract of Brazilian gravidas. Int J Gynaecol Obstet, 2000, 69:223 - 227.
6Kawana K, Yasugi T, Yoshikawa H, et al. Evidence for the presence of neutralizing antibodies against human papillomavirus type 6 in infants born to mothers with condyloma acuminata. Am J Perinatol,2003, 20(1):11 -16.
7Nobbenhuis MA, Helmerhorst TJ, van den Brule AJ, et al. High-risk human papillomavirus clearance in pregnant women: trends for lower clearance during pregnancy with a catch-up postpartum. Br J Cancer,2002, 87:75 -80.
8Wang X, Zhu Q, Rao H. Maternal-fetal transmission of human papillomavirus. Chin Med J ( Engl), 1998,111:726 - 727.
9Fife KH, Katz BP, Brizendine EJ, et al. Cervical human papillomavirus deoxyribonucleic acid persists throughout pregnancy and decreases in the postpartum period. Am J Obstet Gynecol, 1999,180:1110.
10Watts DH, Koutsky LA, Holmes KK, et al. Low risk of perinatal transmission of human papillomavirus: results from a prospective cohort study. Am J Obstet Gynecol, 1998, 178:365 - 373.
