Nielsen, Daniel Aagren http://orcid.org/0000-0001-6678-5937
Petrou, Katherina http://orcid.org/0000-0002-2703-0694
Gates, Ruth D
Article History
Received: 30 September 2017
Revised: 18 January 2018
Accepted: 26 January 2018
First Online: 20 February 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.