Van Eaton, Alexa R.
Mastin, Larry G.
Herzog, Michael
Schwaiger, Hans F.
Schneider, David J.
Wallace, Kristi L.
Clarke, Amanda B.
Article History
Received: 20 March 2015
Accepted: 17 June 2015
First Online: 3 August 2015
Competing interests
: The authors declare no competing financial interests.