1. Adams M, Borysiewicz L, Fiander A, Man S, Jasani B, Navabi H, Lipetz C, Evans AS, Mason M (2001) Clinical studies of human papilloma vaccines in pre-invasive and invasive cancer. Vaccine 19:2549–2556
2. Baldwin PJ, van der Burg SH, Boswell CM, Offringa R, Hickling JK, Dobson J, Roberts JS, Latimer JA, Moseley RP, Coleman N et al (2003) Vaccinia-expressed human papillomavirus 16 and 18 e6 and e7 as a therapeutic vaccination for vulval and vaginal intraepithelial neoplasia. Clin Cancer Res 9:5205–5213
3. Bilu D, Sauder DN (2003) Imiquimod: modes of action. Br J Dermatol 149(Suppl 66):5–8
4. Borysiewicz LK, Fiander A, Nimako M, Man S, Wilkinson GW, Westmoreland D, Evans AS, Adams M, Stacey SN, Boursnell ME et al (1996) A recombinant vaccinia virus encoding human papillomavirus types 16 and 18, E6 and E7 proteins as immunotherapy for cervical cancer. Lancet 347:1523–1527
5. Brooks G, Carroll KC, Butel JS, Morse SA, Mietzneron TA (eds) (2010) Jawetz, Melnick, & Adelberg’s Medical Microbiology, 25th edn. McGraw-Hill Medical, New York