Funding for this research was provided by:
National Center for Injury Prevention and Control (1 R49 CE002096)
Received: 27 June 2018
Accepted: 15 October 2018
First Online: 12 November 2018
Ethics approval and consent to participate
: This study was approved by the Columbia University Institutional Review Board.
: Not Applicable
: The authors declare that they have no competing interests.
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