Funding for this research was provided by:
KWF Kankerbestrijding (2016-10168)
Text and Data Mining valid from 2019-09-03
Received: 28 May 2019
Accepted: 16 August 2019
First Online: 3 September 2019
Ethics approval and consent to participate
: The study was conducted in accordance with the Declaration of Helsinki and approved by the local medical ethical committee of the Leiden University Medical Center (P08.197 and B16.024) and in agreement with the Dutch law. The materials were used according to the Dutch Federation of Medical Research Association guidelines.
: Not applicable
: The authors declare that they have no competing interests.