Funding for this research was provided by:
Umea University
Article History
Received: 6 May 2021
Accepted: 15 October 2021
First Online: 10 November 2021
Declarations
:
: The study was conducted in accordance with the Declaration of Helsinki. The study was approved by the regional ethical review board of Umeå University (Dnr: 2018/15–31).
: Not applicable.
: Volker Otten declared following competing interests: Speakers bureau/paid presentations for company or supplier: Johnson & Johnson DePuy, Waldemar Link GmbH & Co. KG, Smith & Nephew AB. All other authors declared that they have no competing interests as defined by BMC, or other interests that might be perceived to influence the results and/or discussion reported in this paper.