Funding for this research was provided by:
Medicinska Fakulteten, Lunds Universitet (ISEX-ALF for T5 students)
Received: 14 February 2020
Accepted: 16 June 2020
First Online: 2 July 2020
Ethics approval and consent to participate
: The study was approved by the Regional Ethical Review Board, Lund (registration number 2010/482). All volunteers gave signed informed consent.
: Not applicable.
: All authors declare that they have no competing interests.