1. Worldwide burden of cervical cancer in 2008;Arbyn;Ann Oncol,2011
2. Human papillomavirus vaccine introduction—the first five years;Markowitz;Vaccine,2012
3. Cervical cancer. Text book of cancer epidemiology;Sherri,2002
4. Screening for cancer;Hakama;Scand J Soc Med Suppl,1986
5. Cervical cancer: the increasing incidence of adenocarcinoma and adenosquamous carcinoma in younger women;Liu;CMAJ,2001