Nielsen, Claus http://orcid.org/0000-0001-6898-7655
Brunet, Thibaut http://orcid.org/0000-0002-1843-1613
Arendt, Detlev http://orcid.org/0000-0001-7833-050X
Article History
Received: 7 July 2017
Revised: 26 June 2018
Accepted: 11 July 2018
First Online: 22 August 2018
Competing interests
: The authors declare no competing interests.