Funding for this research was provided by:
Herman Jarnhardt Foundation (2018)
Kock's Foundation (2018)
Skane Hopspital Foundation (2018)
Received: 3 June 2019
Accepted: 27 August 2019
First Online: 4 September 2019
Ethics approval and consent to participate
: We obtained written consent from all participants prior to study start. The study was conducted in accordance with the Declaration of Helsinki. The ethical review board in Lund, Sweden (LU 2005:75/205) approved the study.
: Not applicable.
: The authors declare that they have no competing interests.