Funding for this research was provided by:
Uppsala-Umeå Comprehensive Cancer Consortium
Text and Data Mining valid from 2018-08-17
Received: 11 April 2018
Accepted: 2 July 2018
First Online: 17 August 2018
Ethics approval and consent to participate
: This study was conducted in accordance with the principles of the Helsinki Declaration and was approved by the Coordinating Ethics Committee of Helsinki University Hospital.
: An informed consent was received from patients and in case of children, from their parents.
: The authors declare that they have no competing interests.
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