Åstrøm, Anne N.
Lie, Stein Atle
Gülcan, Ferda
Funding for this research was provided by:
Public Dental Healthg Care Services, Hordalan County Norway (not applicable)
Article History
Received: 27 December 2017
Accepted: 22 May 2018
First Online: 31 May 2018
Ethics approval and consent to participate
: The Ombudsman, Norwegian Centre for Research Data, NSD, approved and registered the survey (NO.49241). NORSTAT (ExternalRef removed) was responsible for the distribution of the questionnaires and collection of data. Participants were informed about the purpose of the study and that participation was voluntary. Return of a completed questionnaire was recognized as the informed consent.
: The authors declare that they have no competing interests.
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