Text and Data Mining valid from 2018-04-17
Received: 26 January 2018
Accepted: 23 March 2018
First Online: 17 April 2018
Ethics approval and consent to participate
: 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.For this type of retrospective study, the need for informed consent of individual patients was waived by the ethical committee of UZ Leuven, Leuven, Belgium.
: Not applicable
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