Ning, Zhijun
Gong, Xiwen
Comin, Riccardo
Walters, Grant
Fan, Fengjia
Voznyy, Oleksandr
Yassitepe, Emre
Buin, Andrei
Hoogland, Sjoerd
Sargent, Edward H.
Article History
Received: 28 December 2014
Accepted: 7 May 2015
First Online: 15 July 2015
Competing interests
: The authors declare no competing financial interests.