About the Authors

Corina S. Rueegg

Affiliation Swiss Childhood Cancer Registry, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

Nicolas X. von der Weid

Affiliation Paediatric Hematology-Oncology Unit, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland

Cornelia E. Rebholz

Affiliation Swiss Childhood Cancer Registry, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

Gisela Michel

Affiliation Swiss Childhood Cancer Registry, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

Marcel Zwahlen

Affiliation Swiss Childhood Cancer Registry, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

Michael Grotzer

Affiliation Department of Oncology, University Children's Hospital Zurich, Zurich, Switzerland

Claudia E. Kuehni

kuehni@ispm.unibe.ch

Affiliation Swiss Childhood Cancer Registry, Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

for the Swiss Paediatric Oncology Group (SPOG)

Membership of the Swiss Paediatric Oncology Group (SPOG)is provided in the Acknowledgments.

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CSR NXvdW CER GM MZ MG CEK. Performed the experiments: CSR CER GM CEK. Analyzed the data: CSR NXvdW CER GM MZ MG CEK. Contributed reagents/materials/analysis tools: CSR GM MZ CEK. Wrote the paper: CSR NXvdW CER GM MZ MG CEK.