Received: 29 June 2018
Accepted: 27 March 2019
First Online: 3 April 2019
Ethics approval and consent to participate
: The competent ethics committees of all participating centres (Institut Jules Bordet, Cliniques Universitaires Saint-Luc, Erasme University Hospital, General Hospital Groeninge, AZ Damiaan Ziekenhuis) approved the protocol, as required by applicable national legislation. All patients provided written informed consent form.
: The authors declare that they have no competing interests.
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