Funding for this research was provided by:
FOD Volksgezondheid, Veiligheid van de Voedselketen en Leefmilieu
Received: 31 July 2019
Accepted: 28 October 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: Approval of the ethics committees of all participating centres (i.e. AZ St. Dimpna, AZ St. lucas, centre hospitalier de Mouscron, CHU Brugmann, Hôpitaux Iris Sud, Mariaziekenhuis Overpelt, UZ Gent) was obtained beforehand. The ethics committee of the Antwerp University Hospital acted as the coordinating ethics committee (registration number: B300201317835). The ethics committees determined that participants’ consent was not required for this study.
: Not applicable.
: The authors declare that they have no competing interests.