Funding for this research was provided by:
Received: 15 February 2021
Accepted: 24 May 2021
First Online: 19 June 2021
: Ethical permission was retrieved from the Swedish Ethical Review Authority, reference number 2013/105 − 31/2, 2014/1041-32, 2017/611 − 32. According to the permission the study could be undertaken without personal consent. All data is used on population basis to minimize the intrusion of integrity, no personal identifications were retrieved. The study was performed according to the Helsinki declaration.
: Not applicable, no personal information is included in the material.
: The authors have no competing interests.