1. International Agency for Research on Cancer (IARC),2014
2. International Agency for Research on Cancer: The first 50 years, 1965-2015. World Health Organization (WHO);Saracci,2015
3. International Agency for Research on Cancer (IARC). World Health Organization (WHO). GLOBOCAN 2012: Estimated Cancer Incidence, Mortality and Prevalence Worldwide in 2012. Lyon, France; 2016. Available from: http://globocan.iarc.fr/Default.aspx [accessed August 11, 2016].
4. World Health Organization (WHO). Cancer. International Childhood Cancer Day: Questions & Answers. Available from: http://www.who.int/cancer/media/news/Childhood_cancer_day/en/ [access August 4, 2016]
5. Childhood Cancer International (CCI). Available from: http://www.childhoodcancerinternational.org/about-cci/ [access August 14, 2016]