Hao, Kai
Specht, Judith F.
Nagler, Philipp
Xu, Lixiang
Tran, Kha
Singh, Akshay
Dass, Chandriker Kavir
Schüller, Christian
Korn, Tobias
Richter, Marten http://orcid.org/0000-0003-4160-1008
Knorr, Andreas
Li, Xiaoqin
Moody, Galan
Article History
Received: 26 October 2016
Accepted: 7 April 2017
First Online: 28 June 2017
Competing interests
: The authors declare no competing financial interests.