Guerra, Davide http://orcid.org/0000-0002-8242-7731
Plazzi, Federico http://orcid.org/0000-0001-5920-7557
Stewart, Donald T.
Bogan, Arthur E.
Hoeh, Walter R.
Breton, Sophie
Article History
Received: 18 January 2017
Accepted: 31 March 2017
First Online: 8 May 2017
Competing Interests
: The authors declare that they have no competing interests.