Zeng, Fuxing
Chen, Yanbo
Remis, Jonathan
Shekhar, Mrinal
Phillips, James C.
Tajkhorshid, Emad
Jin, Hong
Article History
Received: 21 October 2016
Accepted: 14 December 2016
First Online: 11 January 2017
Competing interests
: The authors declare no competing financial interests.