Christoffersen, Poul http://orcid.org/0000-0003-2643-8724
Bougamont, Marion http://orcid.org/0000-0001-7196-4171
Hubbard, Alun
Doyle, Samuel H.
Grigsby, Shane http://orcid.org/0000-0003-4904-7785
Pettersson, Rickard
Article History
Received: 9 May 2016
Accepted: 9 February 2018
First Online: 14 March 2018
Competing interests
: The authors declare no competing interests