Funding for this research was provided by:
Research Fund at Skaraborg Hospital, Skövde, Sweden
Skaraborg Institute for Research and Development, Skövde, Sweden.
The bank of Sweden Tercentenary Foundation
Received: 17 September 2019
Accepted: 26 August 2020
First Online: 14 September 2020
Ethical approval and consent to participate
: All procedures performed in the study involving human participants were in accordance with the ethical standard of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study was approved by Gothenburg University and the Sahlgrenska Academy Ethics committee (D:nr Ö 669–03).Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interest.