Funding for this research was provided by:
KWF Kankerbestrijding (4864)
Text and Data Mining valid from 2017-06-07
Received: 23 December 2016
Accepted: 16 May 2017
First Online: 7 June 2017
Compliance with ethical standards
: The corresponding author has full control of all primary data and agrees to allow Supportive Care in Cancer to review the data if requested.
: The authors declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.