1. Swiss Childhood Cancer Registry; Institute of Social and Preventive Medicine; University of Bern; Bern Switzerland
2. Department of Pediatrics; Inselspital; Bern University Hospital; University of Bern; Bern Switzerland
3. Division of Chronic Diseases; Institute of Social and Preventive Medicine; Lausanne University Hospital; Lausanne Switzerland
4. Division of Pediatric Hematology/Oncology; University Children`s Hospital Basel; Basel Switzerland
5. Division of Pediatric Pulmonology; Children's Hospital of Eastern Switzerland; St. Gallen Switzerland
6. Department of Pediatrics; Onco-hematology Unit; University Hospital of Geneva; University of Geneva; Geneva Switzerland
7. Interdisciplinary Long-term follow-up Clinic; Kantonsspital Baselland; Liestal Switzerland