Tieks, Alieke http://orcid.org/0000-0002-2107-1743
Oude Voshaar, Richard C. http://orcid.org/0000-0003-1501-4774
Zuidersma, Marij http://orcid.org/0000-0002-0353-5460
Article History
Received: 2 November 2021
Accepted: 25 January 2022
First Online: 17 February 2022
Declarations
:
: The study was approved by the institutional review board at the University Medical Center Groningen (code: 2013/019), and was performed in accordance with the Declaration of Helsinki. Protocol number NL43301.042.13 with title: Idiographic study of Cognitive function, Affect, and Sleep in the Elderly (i-CASE). Written informed consent was obtained from each study participant.
: Not applicable.
: Marij Zuidersma declares she is a member of the BMC Psychiatry editorial board. She has no other conflicts of interest. Richard Oude Voshaar reports no conflicts of interest. Alieke Tieks reports no conflicts of interest.