He, Tao
Huang, Yijiang
Chak, Juy Chi
Klar, Roland Manfred
Funding for this research was provided by:
Chinese Scholarship Council Grant
Friedrich-Baur-Stiftung under the Upper Franconian Project Program
Article History
Received: 4 June 2018
Accepted: 26 September 2018
First Online: 5 October 2018
Competing Interests
: The authors declare no competing interests.