African Organisation for Research and Training in Cancer (AORTIC)
Association of the Pediatric Oncology Nurses (APON)
American Pediatric Surgical association (APSA)
American Society of Clinical Oncology (ASCO)
American Society of Pediatric Hematology/Oncology (ASPH/O)
American Society for Therapeutic Radiology and Oncology (ASTRO)
Andalusian Website of Anaesthesiology, Critical Care and Pain Treatment, AnestCadiz
Ankara Foundation of Children with Leukemia (LOSEV)
Asbestos Cancer and Mesothelioma Support Center at Asbestos.Net
Childhood Cancer Foundation - Candlelighters Canada
Children's Cancer and Leukemia Group (CCLG)
Children's Oncology Group (COG)
Cochrane Childhood Cancer Group
European Association for Cancer Research (EACR)
European Oncology Nursing Society (EONS)
European Organisation for Research and Treatment of Cancer (EORTC)
European School of Oncology (ESO)
European School of Haematology (ESH)
European Society of Paediatric Haematology and immunology (ESPHI)
European Society for Medical Oncology (ESMO)
European Society of Surgical Oncology (ESSO)
European Society for Therapeutic Radiology and Oncology (ESTRO)
Gesellschaft für Pädiatrische Onkologie und Hämatologie (GPOH)
Hong Kong Children's Cancer Foundation (HKCCF)
International Confederation of Childhood Cancer Parent Organisations (ICCCPO)
International Paediatric Neuro Oncology Conference (ISPNO)
International Union against Cancer (UICC)
UICC Cancer fellowships information
Japanese Society of Pediatric Oncology (JSPO)
Multinational Association of Supportive Care in Cancer (MASCC)
The National Children's Cancer Society
Oncology Nursing Society (ONS)
Parenting Press (Parenting web site)
Paediatric Radiation Oncology Society (PROS)
Pediatric Oncology Group of Ontario (POGO)
Société Française d'Oncologie Pédiatrique (SFOP)
VOKK (Vereniging Ouders Kinderen Kanker)
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More links will be published soon! Please contact the SIOP Secretariat with your suggestions of other important links!