| IARC Coordination | International Agency for Research on Cancer (IARC), Lyon, France | Dr Joachim Schüz Dr Friederike Erdmann Dr Tracy Lightfoot Dr Eva Steliarova-Foucher |
| Argentina | Institute Nacional del Cancer, Buenos Aires, Argentina | Dr Florencia Moreno |
| Brazil | Institute de Cancer (INCA), Rio de Janeiro, Brazil | Dr Maria Pombo-de-Oliveira |
| China | Capital Institute of Pediatrics, Beijing, China | Dr Xiadong Shi |
| Denmark | University Hospital Copenhagen, Denmark | Dr Kjeld Schmiegelow |
| Egypt | Children’s Cancer Hospital, Cairo, Egypt | Dr Iman Sidhom |
| Germany | University Children’s Hospital Münster, Münster, Germany | Dr Claudia Rössig |
| Hannover Medical School, Hannover, Germany | Dr Martin Stanulla | |
| Ghana | University of Ghana Medical School, Korle Bu Teaching Hospital, Accra, Ghana | Dr Cathy Segbefia |
| India | Cancer Institute (WIA), Chennai, India Dr. B.R.A. Institute Rotary Cancer Hospital, New Delhi, India |
Dr Rajaraman Swaminathan Dr Sameer Bakhshi |
| Japan | Tokyo Women’s Medical University, Tokyo, Japan | Dr Naohito Yamaguchi |
| Jordan | King Hussein Cancer Center, Amman, Jordan | Dr Faris Madanat |
| Kenya | Kenyatta National Hospital, Nairobi, Kenya | Dr Walter Otieno Mwanda |
| Division of Paediatrics, Moi Teaching and Referral Hospital, Eldoret | Dr Festus Njuguna | |
| Nigeria | University of Ibadan/University College Hospital, Ibadan, Nigeria | Dr Biobele J. Brown |
| Republic of Korea | Seoul National University Children’s Hospital, Seoul, Republic of Korea | Dr Hee Young Shin Dr Hyoung Jin Kang |
| Russian Federation | Federal Research Centre for Pediatric Hematology, Oncology and Immunology, Moscow, Russian Federation | Dr Alexander Karachunskiy |
| South Africa | Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa | Dr David Stones |
| Turkey | Hacettepe University, Ankara, Turkey | Dr Selin Aytac |
| United Kingdom | Leeds General Infirmary, Leeds, UK | Dr Sally Kinsey |
| Health Sciences, The University of York, York, UK | Dr Eve Roman | |
| Uganda | MRC/UVRI Research Unit on AIDS, Entebbe, Uganda | Dr Robert Newton |
| United States of America | Department of Pediatrics and Masonic Cancer Center, Minneapolis, USA | Dr Logan Spector |
The Childhood Leukemia International Consortium (CLIC) and the International Childhood Cancer Cohort Consortium (I4C) were represented at the kick-off meeting.