Pluim, Jip M. E.
Loeve, Arjo J.
Gerretsen, Reza R. R.
Article History
Accepted: 3 July 2019
First Online: 24 July 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: For this type of study formal consent is not required.
: Not required.