Received: 3 May 2018
Accepted: 5 October 2018
First Online: 20 October 2018
Ethics approval and consent to participate
: The George Washington University Institutional Review Board reviewed the study and determined that it was exempt from IRB review under regulatory category 1 & 2 (IRB number 041529). This retrospective review of student outcomes had identifiers eliminated prior to inclusion in study.
: No materials related to individual people is included in the manuscript.
: The authors declare that they have no competing interest or conflicts of interest.
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