Christensen, Steen R.
Hansen, Brian B.
Johansen, Keld
Pedersen, Kim H.
Thøgersen, Joakim R.
Jensen, Anker Degn http://orcid.org/0000-0002-7341-4859
Funding for this research was provided by:
Innovation Fund Denmark (155-2014-10)
Article History
Received: 26 February 2018
Revised: 1 May 2018
Accepted: 12 June 2018
First Online: 5 July 2018
Compliance with Ethical Standards
: The authors declare that they have no competing interests.