Al-Ibrahim, Afnan A.
Jackson, Robert T.
Article History
Received: 29 September 2018
Accepted: 27 March 2019
First Online: 17 April 2019
Ethics approval and consent to participate
: The Centers for Disease Control and Prevention and the Research Ethics Review Board at the National Center for Health Statistics conducted the consents and have received ethical approval.
: Not Applicable.
: The authors declare that they have no competing interests.
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