Simões, Tiago R.
Funston, Gregory F.
Vafaeian, Behzad
Nydam, Randall L.
Doschak, Michael R.
Caldwell, Michael W.
Article History
Received: 2 October 2015
Accepted: 15 March 2016
First Online: 13 April 2016
Competing interests
: The authors declare no competing financial interests.