Funding for this research was provided by:
Text and Data Mining valid from 2018-08-06
Received: 16 February 2018
Accepted: 30 July 2018
First Online: 6 August 2018
Ethics approval and consent to participate
: According to Swedish legislation [ CitationRef removed ], no formal approval from the Regional Ethics Review Board was needed for this project, but the ethics of scientific work [ CitationRef removed ] was followed in all steps of the work. The informants were included after verbal informed consent. They were informed - both verbally and in writing - that participation was voluntary and possible to withdraw at any time. The information also emphasized that data would be handled confidentially and that the reporting of results should be done so that identification of the informants was not possible.
: Not applicable.
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