Seren, Huseyin R http://orcid.org/0000-0003-1100-8369
Zhang, Jingdi
Keiser, George R
Maddox, Scott J http://orcid.org/0000-0001-5454-4984
Zhao, Xiaoguang
Fan, Kebin
Bank, Seth R
Zhang, Xin
Averitt, Richard D
Article History
Received: 21 September 2015
Revised: 21 January 2016
Accepted: 25 January 2016
First Online: 26 January 2016
Competing interests
: The authors declare no conflict of interest.