Children's Oncology Group
http://www.childrensoncologygroup.org/
International Agency for Research on Cancer
http://www.iarc.fr/
World Health Organization
http://www.who.int
The National Cancer Institute
http://www.cancer.gov/cancer_information
Lymphoma Foundation of Canada
http://www.lymphoma.ca/
The Childhood Cancer Foundation Candlelighters Canada
http://www.candlelighters.org
Child Health Research Institute
http://www.chri.org
Canadian Oncology Societies
http://www.cos.ca/
Canadian Cancer Society
http://www.cancer.ca/
Brain Tumour Foundation of Canada
http://www.btfc.org/
Pediatric Oncology Group of Ontario
http://www.pogo.on.ca/
CancerCare Ontario
http://www.cancercare.on.ca/
Leucan
http://www.leucan.qc.ca/