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Authors
Li, Guohua https://orcid.org/0000-0003-4732-2448
Chihuri, Stanford
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Funding
Funding for this research was provided by:
National Center for Injury Prevention and Control (CE002096)
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Article History
Received: 13 November 2019
Accepted: 10 February 2020
First Online: 17 February 2020
Ethics approval and consent to participate
: This study was deemed exempt from review under 45 CFR 46 title 45 of the Code of Federal Regulations part 46 (protection of human research subjects) by the Columbia University Medical Center institutional review board; informed consent was therefore not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
