Funding for this research was provided by:
Forskningsrådet om Hälsa, Arbetsliv och Välfärd (2015-00304)
Text and Data Mining valid from 2019-10-24
Received: 8 November 2018
Accepted: 1 October 2019
First Online: 24 October 2019
Ethics approval and consent to participate
: All participants were provided with an information letter about the study and signed an informed consent. The study was approved by the regional ethical committee of Stockholm (No: 2017/1595/31).
: Not applicable.
: The authors declare that they have no conflict of interest.