Silventoinen, Karri http://orcid.org/0000-0003-1759-3079
Jelenkovic, Aline
Palviainen, Teemu
Dunkel, Leo
Kaprio, Jaakko
Funding for this research was provided by:
National Institute on Alcohol Abuse and Alcoholism (AA-12502, AA-00145, AA-09203, AA15416, AA018755)
Academy of Finland (100499, 118555, 141054, 264146, 308248, 312073)
University of Helsinki including Helsinki University Central Hospital
Article History
Received: 18 October 2021
Accepted: 17 March 2022
First Online: 5 April 2022
Declarations
:
: Karri Silventoinen, Aline Jelenkovic, Teemu Palviainen, Leo Dunkel, Jaakko Kaprio have declare that they have no conflict of interest.
: The ethics committee of the Department of Public Health of the University of Helsinki (Helsinki, Finland), the ethics committee of the Helsinki University Central Hospital District (Helsinki, Finland), and the Institutional Review Board of Indiana University (Bloomington, IN, USA) approved the study protocols.
: Parents or legal guardians provided informed consent for the twins at ages 12 and 14, and the twins themselves provided informed consent at age 17 and later ages.
: Written informed consent was obtained from all participants in the study.
: Not applicable.