Gianfrancesco, M A
Balzer, L
Taylor, K E
Trupin, L
Nititham, J
Seldin, M F
Singer, A W
Criswell, L A
Barcellos, L F
Article History
Received: 25 May 2016
Accepted: 9 June 2016
First Online: 28 July 2016
Competing interests
: The authors declare no conflict of interest.