Funding for this research was provided by:
Region Halland (HALLAND-859 921)
Received: 20 January 2020
Accepted: 26 March 2020
First Online: 3 April 2020
Ethics approval and consent to participate
: The study was approved by the Central Ethical Review in Sweden (Decision Number 2018/1117). For this type of study formal consent is not required.
: Not applicable.
: The authors declare that they have no competing interests.