Funding for this research was provided by:
Received: 24 February 2021
Accepted: 1 September 2021
First Online: 16 September 2021
: The study conforms to recognized ethical standards [CitationRef removed] and was approved by the Regional Ethical Review Board in Stockholm, Sweden (2015/1463–31, 2016/549–32, 2017/1203–32). All methods were carried out in accordance with relevant guidelines and regulations. Informed consent was obtained from all participants. Consent to participate was implied by completing and returning the questionnaire, which was approved by the Ethical Review Board.
: Not applicable.
: The authors declare that they have no competing interests.