Umbreit, Neil T.
Miller, Matthew P.
Tien, Jerry F.
Cattin Ortolá, Jérôme
Gui, Long
Lee, Kelly K.
Biggins, Sue
Asbury, Charles L.
Davis, Trisha N.
Article History
Received: 8 July 2014
Accepted: 8 August 2014
First Online: 19 September 2014
Competing interests
: The authors declare no competing financial interests.