Jeong, Joshua
Li, Zhihui
Article History
First Online: 8 April 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Biomedical Ethics Committee of Peking University and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors. The present study was deemed exempt from ethics review by the Harvard T.H. Chan School of Public Health Institutional Review Board, as the China Family Panel Studies data used are publicly available and fully de-identified.
: Informed consent was obtained from all individual participants included in the study.