Funding for this research was provided by:
Sveriges Kommuner och Landsting
Received: 4 September 2018
Accepted: 25 January 2019
First Online: 31 January 2019
Ethics approval and consent to participate
: This study was approved by the Regional Ethical Review Board in Stockholm, with the protocol number 2015/1268–31/2 + 2016/88. All participants filled out a statement regarding informed consent to participate online, distributed via the E-health platform described above.
: The authors declare that they have no competing interests.
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