
 |
 |
 |
 |

|
| 6. |
World Health Organization. 2007 Initiative for vaccine research. Viral cancers. Available at:
http://www.who.int/vaccine_research/diseases/viral_cancers/en/
print.html |
| 7. |
World Health Organization. Department of Vaccines and Other Biologicals and International Agency for Research on Cancer. The current status of development of prophylactic vaccines against human papillomavirus infection. Report of a technical meeting, Geneva, 16 – 18 February 1999. Available at:
www.who.int/vaccines-documents/DocsPDF99/www9914.pdf |
| 8. |
World Health Organization. Sexually transmitted infections increasing – 250 million new infections annually. WHO features. 1990:152:1-6 |
| 9. |
Prescribing Information of Quadrivalent vaccine (MSD, HongKong) |
| 10. |
Hospital Authority: Hong Kong Cancer Registry web site. http://www3.ha.org.hk/cancereg/e_stat.asp |
| 11. |
Koutsky L, et al. Epidemiology of Genital Human Papillomavirus Infection. Am J Med. 1997;102(5A):3-8 |
|
 |
|