[1] Clinica Pediatrica Dell', Università di Milano, Ospedale San Gerardo, Monza
[2] Pediatric Oncology Unit, Rambam Medical Center, Haifa
[3] Pediatric Oncology Clinic, University of California San Francisco
[4] Children's Cancer Research Institute, Presbyterian-Pacific Medical Center, San Francisco
[5] Children's Hospital, Los Angeles
[6] Department of Psychology, San Diego State University, San Diego, California
[7] Department of Sociology, University of Michigan, Ann Arbor, Michigan
[8] Division of Pediatric Hematology, Oncology and Bone Marrow Transplant, University of Minnesota, Minneapolis, Minnesota
[9] Department Child and Adolescent Psychiatry, Sophia Children's Hospital, Rotterdam
[10] Pediatric Oncology Center, Children's/University Hospital, Groningen
[11] Department Pediatric Oncology, Royal Liverpool Children's Hospital, Alder Hey
[12] Department of Pediatric Oncology, Royal Manchester Children's Hospital, Manchester
[13] Department of Nursing Studies, University of Southampton, Southampton
[14] Department of Oncology, Children's Hospital, Birmingham
[15] Pediatrics Departments, AC Camargo Hospital, São Paulo
[16] National Institute of Child Health, Budapest