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Authors
Wang, Xi https://orcid.org/0000-0002-7572-6354
Hou, Jingyi
Quedenau, Claudia
Chen, Wei https://orcid.org/0000-0003-3263-1627
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Funding
Funding for this research was provided by:
Federal Ministry for Education and Research
Senate of Berlin, Berlin, Germany (BIMSB 0315362A)
Senate of Berlin, Berlin, Germany (0315362C)
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Article History
Received: 10 March 2016
Revised: 17 June 2016
Accepted: 21 June 2016
First Online: 18 July 2016
Conflict of interest
: The authors declare that they have no conflict of interest.
