Received: 1 March 2021
Accepted: 3 August 2021
First Online: 23 August 2021
: The study was approved by the Regional Committee on Biomedical Research Ethics of North Jutland (N-20140047). All participants and legal caretakers gave informed consent, and the study was conducted according to the declaration of Helsinki. The categories of the person data collected for the project are registered in the processing activities of research in the North Denmark Region in compliance with EU GDPR article 30. The study was registered at ExternalRef removed with identifier ExternalRef removed.
: Not applicable.
: TT and RA declare that they have no competing interests. SEJ has received an unrestricted research grant from the Obel Family Foundation. SG, JBF and CP declare that they have no competing interests. REN has received research grants from H. Lundbeck and Otsuka Pharmaceuticals for clinical trials, received speaking fees from Bristol-Myers Squibb, Astra Zeneca, Janssen & Cilag, Lundbeck, Servier, Otsuka Pharmaceuticals, Teva A/S and Eli Lilly and has acted as advisor to Astra Zeneca, Eli Lilly, Lundbeck, Otsuka Pharmaceuticals, Takeda and Medivir, and has acted as investigator for Janssen-Cilag, Lundbeck, Boehringer, Compass and Sage.