Anis, Nadja http://orcid.org/0000-0003-4615-7129
Keski-Rahkonen, Anna http://orcid.org/0000-0002-6713-7488
Kaartinen, Sara http://orcid.org/0000-0002-4773-2925
Silén, Yasmina http://orcid.org/0000-0001-5065-2566
Kaprio, Jaakko http://orcid.org/0000-0002-3716-2455
Aaltonen, Sari http://orcid.org/0000-0002-2873-4263
Funding for this research was provided by:
The Finnish Cultural Foundation
The Signe and Ane Gyllenberg Foundation
Academy of Finland (grants 100499, 205585, 118555, 141054, 264146, 312073)
The Yrjö Jahnsson Foundation
Juho Vainio Foundation
University of Helsinki
Article History
Received: 18 December 2023
Accepted: 26 May 2024
First Online: 8 June 2024
Declarations
:
: 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 FT12 study protocol. All study methods were carried out in accordance with the approved guidelines. The parents of the participating twins or twins themselves as young adults provided written informed consent for participation and publication of the study.
: The authors have no relevant financial or non-financial interests to disclose.