Liu, Guowei http://orcid.org/0000-0002-2606-5051
Bollier, Daniel
Gübeli, Christian
Peter, Noemi
Arnold, Peter
Egli, Marcel http://orcid.org/0000-0002-4064-2871
Borghi, Lorenzo http://orcid.org/0000-0002-9631-9694
Funding for this research was provided by:
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (31003A-152831, 31003A_169546, 31003A_169546, 31003A-152831)
Article History
Received: 16 March 2018
Revised: 6 August 2018
Accepted: 8 August 2018
First Online: 17 October 2018
Competing interests
: The authors declare no competing interests.