1 Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands. [email protected].
2 Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands.
3 IRCCS Istituto Giannina Gaslini, Genoa, Italy.
4 Division of Childhood Cancer Epidemiology, German Childhood Cancer Registry, Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center, of the Johannes Gutenberg University Mainz, Mainz, Germany.
5 Hospital Universitario y Politécnico La Fe, Valencia, Spain.
6 St. Anna Children's Hospital, Vienna, Austria.
7 Department of Paediatrics and Adolescent Medicine, Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria.
8 Vilnius University Hospital Santaros Klinikos, Vilnius, Lithuania.
9 St. Anna Children's Hospital and Children's Cancer Research Institute, Department of Studies and Statistics for Integrated Research and Projects, Department of Paediatrics, Medical University of Vienna, Vienna, Austria.