Blockhuys, Magali http://orcid.org/0000-0002-1641-9514
Gypen, Bart
Heyman, Stijn
Valk, Jody
van Sprundel, Frank
Hendrickx, Leo
Article History
First Online: 30 August 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflicts of interest.
: For this type of study, formal consent is not required.
: Does not apply.