Stevens, Christopher J.
Mauger, Alexis R.
Hassmèn, Peter
Taylor, Lee
Article History
First Online: 26 April 2018
Compliance with Ethical Standards
:
: No sources of funding were used to assist in the preparation of this letter.
: Christopher Stevens, Alexis Mauger, Peter Hassmèn and Lee Taylor declare that they have no conflicts of interest relevant to the content of this letter.