van Hunsel, Florence http://orcid.org/0000-0001-8965-3224
van de Koppel, Sonja
van Puijenbroek, Eugène http://orcid.org/0000-0002-2236-1398
Kant, Agnes
Article History
First Online: 8 May 2018
Compliance with ethical standards
:
: Florence van Hunsel, Sonja van de Koppel, Eugène van Puijenbroek and Agnes Kant have no conflicts of interest.
: No sources of funding were used to assist in the preparation of this study.