Tarduno, John A.
Watkeys, Michael K.
Huffman, Thomas N.
Cottrell, Rory D.
Blackman, Eric G.
Wendt, Anna
Scribner, Cecilia A.
Wagner, Courtney L.
Article History
Received: 11 November 2014
Accepted: 17 June 2015
First Online: 28 July 2015
Competing interests
: The authors declare no competing financial interests.