Expression patterns of the human papillomavirus type 16 transcription factor E2 in low- and high-grade cervical intraepithelial neoplasiaMaitland, Norman J.; Conway, Sarah; Wilkinson, Nafisa S.; Ramsdale, Jane; Morris, Jo R.; Sanders, Cyril M.; Burns, Julie E.; Stern, Peter L.; Wells, Michael · The Journal of Pathology · 1998