Text and Data Mining valid from 2017-10-25
Received: 16 May 2017
Revised: 19 July 2017
Accepted: 27 September 2017
First Online: 25 October 2017
Compliance with ethical guidelines
: M. Bachmann, J. Kool, P. Oesch, M. Weber and S. Bachmann declare that they have no competing interests.
: This study included no new therapies on patients and the data presented here were assessed routinely during the rehabilitation process. The study was conducted in accordance with the revised principles of the Declaration of Helsinki 1983. Informed consent was obtained from all patients included in the study. The study was approved by the ethics committee of the Canton St. Gallen, Switzerland (EKSG 10/072/1B).