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Authors
Li, Yuli
Cui, Naixue
Kok, Hui Ting
Deatrick, Janet
Liu, Jianghong https://orcid.org/0000-0002-8405-6153
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Funding
Funding for this research was provided by:
National Institutes of Environmental Health Sciences and the National Institutes of Health (K01-ES015877, K02-ES-019878 and R01-ES-018858)
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Article History
First Online: 22 May 2019
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 institutional and/or national research committee from both the University of Pennsylvania and the Ethical Committee for Research at Jintan Hospital in China, as well as with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study and the guardians in the school.
