Funding for this research was provided by:
Gottfried und Julia Bangerter-Rhyner-Stiftung
Fulbright Specialist Program
Received: 17 October 2018
Accepted: 29 April 2019
First Online: 10 May 2019
Ethics approval and consent to participate
: The study was performed according to Swiss law. The Ethics Committee, within the Canton of Bern (Kantonale Ethikkommission Bern, Ref. No. KEK-BE: 010/2016). The Ethics Committee approved the waiver of consent to analyse these records.
: Not Applicable.
: The authors declare that they have no competing interests.
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