Funding for this research was provided by:
Forskningsrådet om Hälsa, Arbetsliv och Välfärd (2016-07194)
Text and Data Mining valid from 2019-09-05
Received: 28 November 2018
Accepted: 29 August 2019
First Online: 5 September 2019
Ethics approval and consent to participate
: The study conforms to recognized ethical standards [CitationRef removed] and was approved by the Stockholm Regional Ethical Review Board (2015/1463–1431 and 2016/549–32). The Ethical Review Board also approved that consent to participate was implied by the completion and return of the questionnaire.
: Not applicable.
: The authors declare that they have no competing interests.