Vandekerckhove, Wim http://orcid.org/0000-0002-0106-7915
Article History
Received: 23 April 2020
Accepted: 9 February 2021
First Online: 5 March 2021
Compliance with Ethical Standards
:
: The author declares that there is no conflicts of interest.
: This paper uses publicly available data and was conducted in compliance with the Declaration of Helsinki (2013) on research ethics.