Funding for this research was provided by:
Austrian Science Fund (J3267)
German Society for Manual Medicine (-)
Received: 1 March 2018
Accepted: 17 October 2018
First Online: 30 October 2018
Ethics approval and consent to participate
: The study was approved by the Ethical Committee of the Medical University Innsbruck (AN4859 318/4.9) in accordance with the current version (2013) of the Declaration of Helsinki, and it was registered as No. 20131128–850 by the Coordinating Center for Clinical Studies of the Medical University Innsbruck and retrospectively registered on 11th of October 2018 at ExternalRef removed with the ID NCT03704311. Prior to enrollment, but after determining study eligibility, explaining the procedures, and having a consultation with a physician, informed oral and written consents were obtained from all participants.
: Not applicable.
: The authors declare that there are no competing interests.
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