Funding for this research was provided by:
KWF Kankerbestrijding (grant number 2012.WO39.C143)
Received: 29 February 2020
Accepted: 5 September 2020
First Online: 22 September 2020
Compliance with ethical standards
: All authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments.