Text and Data Mining valid from 2019-04-01
Received: 2 November 2018
Accepted: 14 March 2019
First Online: 1 April 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The study was in accordance with the ethical standards of the UZ Brussel and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was given by the patient both written and orally.