Funding for this research was provided by:
National Institute of Environmental Health Sciences (R21ES026412, L30ES023165)
National Natural Science Foundation of China (81961128023)
Received: 1 November 2020
Accepted: 15 April 2021
First Online: 28 April 2021
: The research protocol was reviewed and approved by the Institutional Review Boards at Oregon State University (USA), the University of South Carolina (USA), and Xinhua Hospital (China). All mothers (or the child’s primary caregiver) provided written informed consent prior to participation.
: Not applicable.
: The authors declare they have no competing interests.