De Schepper, Stijn http://orcid.org/0000-0002-6934-0914
Ray, Jessica L http://orcid.org/0000-0002-7305-5737
Skaar, Katrine Sandnes
Sadatzki, Henrik http://orcid.org/0000-0002-1270-6807
Ijaz, Umer Z http://orcid.org/0000-0001-5780-8551
Stein, Ruediger http://orcid.org/0000-0002-4453-9564
Larsen, Aud http://orcid.org/0000-0001-6927-5537
Article History
Received: 15 January 2019
Revised: 2 May 2019
Accepted: 24 May 2019
First Online: 24 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.