Jahn, Alexander
Rysgaard, Timmi K.
Andersen, Johan Hviid
Winding, Trine Nøhr
Article History
Received: 29 January 2021
Accepted: 28 April 2021
First Online: 12 May 2021
Declarations
:
: The study was approved by the Danish Data Protection Agency. According to Danish Law (Act on Research Ethics Review of Health Research Projects), available at: ExternalRef removed, questionnaire and register-based studies require neither approval by ethical or scientific committees nor written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.