1. Worldwide burden of cancer attributable to HPV by site, country and HPV type;De Martel;Int J Cancer,2017
2. World Health Organization. Human papillomavirus (HPV) and cervical cancer. Available from: https://www.who.int/en/news-room/fact-sheets/detail/human-papillomavirus-(hpv)-and-cervical-cancer Accessed 19 June 2018.
3. Relationships between cancer pattern, country income and geographical region in Asia;Ng;BMC Cancer,2015
4. Cervical cancer prevalence, incidence and mortality in low and middle income countries: a systematic review;Shrestha;Asian Pacif J Cancer Prev,2018
5. WHO IARC. Cancer Fact Sheets : Cervix uteri. Vol. 876, GLOBOCAN 2018. Available from: http://gco.iarc.fr/today Accessed 5 July 2018.