Li-Gao, Ruifang http://orcid.org/0000-0003-0650-1351
Boomsma, Dorret I.
de Geus, Eco J. C.
Denollet, Johan
Kupper, Nina
Funding for this research was provided by:
ZonMw (480-04-004, 463-06-001, 451-04-034, 400-05-717, Addiction-31160008, 016-115-035, 481-08-011, 056-32-010, Middelgroot-911-09-032)
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (904-61-090, 985-10-002, 912-10-020, 904-61-193)
Vrije Universiteit Amsterdam
Article History
Received: 4 December 2019
Accepted: 21 September 2020
First Online: 16 October 2020
Compliance with ethical standards
:
: Ruifang Li-Gao, Dorret I. Boomsma, Eco J. C. de Geus, Johan Denollet, Nina Kupper declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: All participants of the Netherlands Twin Register 18 years and older signed a written informed consent, for participants younger than 18 years the written informed consent was signed by their primary caregiver. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The studies were approved by the Central Ethics Committee on Research Involving Human Subjects of the VU University Medical Center, Amsterdam, an Institutional Review Board certified by the U.S. Office of Human Research Protections (IRB Number IRB-2991 under Federal-wide Assurance-3703; IRB/Institute Codes, NTR 03-180).