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Article History
Received: 12 April 2019
Accepted: 24 December 2019
First Online: 2 January 2020
Ethics approval and consent to participate
: In line with the NSD (Norwegian Data protection services) guidelines (ExternalRef removed), it was not necessary to notify NSD about the project. A researcher informed the class about the study and related procedures and asked students for their voluntary participation. Answers to questionnaires were considered voluntary participation.
: Not applicable.
: The authors declare that they have no competing interests.
