Jakob, Manuel O
Guller, Ulrich
Ochsner, Alex
Oertli, Daniel
Zuber, Markus
Viehl, Carsten T
Article History
Received: 1 February 2018
Accepted: 23 September 2018
First Online: 3 October 2018
Ethics approval and consent to participate
: The study has been approved by the regional Ethic committees of Basel (#201/00), Bern (#30/2001), and Olten (#EKO-0026). A written consent was signed by every participant.
: Not Applicable.
: The authors declare that they have no competing interests.
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