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Funding
Funding for this research was provided by:
Fonds De La Recherche Scientifique - FNRS
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Article History
First Online: 2 June 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: This study was approved by the Ethics Committee of the Université catholique de Louvain, in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: All individual participants included in the study gave their informed consent prior to data collection.
