Chu, J
Li, J-G
Giannopoulos, P F
Blass, B E
Childers, W
Abou-Gharbia, M
Praticò, D
Article History
Received: 25 July 2014
Revised: 17 October 2014
Accepted: 5 November 2014
First Online: 6 January 2015
Competing interests
: The authors declare no conflict of interest.