Funding for this research was provided by:
Stiftelsen Konung Gustaf V:s Jubileumsfond (492009)
NU Hospital Group
Article History
Received: 18 March 2020
Accepted: 2 June 2020
First Online: 10 June 2020
Compliance with ethical standards
:
: The authors declare no conflicts of interest.
: The study has been conducted in accordance with the Declaration of Helsinki. The Sahlgrenska University Hospital Ethical Review Board, Gothenburg, Sweden approved the study (460–09). The need for informed consent was waived under the approval of the Ethical Review Board due to the retrospective design.