Funding for this research was provided by:
Text and Data Mining valid from 2020-01-06
Received: 18 June 2019
Accepted: 23 December 2019
First Online: 6 January 2020
Ethics approval and consent to participate
: For the subjects included in the explorative phase, the study protocol was approved by the local institutional review boards of CHU Hospital of Liège (Research Ethics Committee-human protocol #2005-020-Principal Investigator: Prof M. Malaise). For the subjects included in the validation phase, the study was approved by Ethics Committee of the Cliniques Universitaires Saint-Luc (Bruxelles; Study No. B403201317717).
: Not applicable.
: The authors declare that they have no competing interests.