Funding for this research was provided by:
University of Skövde
Received: 15 October 2021
Accepted: 10 January 2022
First Online: 1 February 2022
: A description of ethics approval and consent to participate is presented under the headline Ethical issues in the manuscript. The Central Ethical Review Board in Sweden approved the study (Dnr Ö 9–2013). All methods were performed in accordance with relevant guidelines and regulations. Prior to the data collection the participants were given written and orally information about the study. Informed consent was obtained from all participants before the study was started.
: Consent for publication was obtained from the person in Fig. InternalRef removed Locations of the injections.
: The authors declare that they have no competing interests.