Funding for this research was provided by:
Stockholms Läns Landsting
Svenska Sällskapet för Medicinsk Forskning
Received: 26 February 2021
Accepted: 11 June 2021
First Online: 7 July 2021
: Informed consent after information of the study protocol orally and in writing was obtained from the patient or, when not possible, from a close relative. The protocol complied with the ethical guidelines of the Declaration of Helsinki and was approved by the Regional Ethical Review Board, Stockholm, Sweden.
: Not applicable.
: The authors declare that they have no competing interests.