Funding for this research was provided by:
KWF Kankerbestrijding (OAA/H1/VU 2015-7502)
Cancer Center Amsterdam (NL) (CCA2012-2-05)
Received: 17 April 2018
Accepted: 27 June 2018
First Online: 31 July 2018
Ethics approval and consent to participate
: Each patient gave written informed consent prior to inclusion. This study has been performed in accordance with the Declaration of Helsinki and has been approved by the Medical Ethics Committee of the VU University Medical Center.
: Not applicable.
: The authors declare that they have no competing interests.
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