Ashare, R L
Kimmey, B A
Rupprecht, L E
Bowers, M E
Hayes, M R
Schmidt, H D
Article History
Received: 27 August 2015
Revised: 8 October 2015
Accepted: 30 October 2015
First Online: 19 January 2016
Competing interests
: The authors declare no conflict of interest.