Received: 9 February 2018
Accepted: 19 September 2018
First Online: 27 September 2018
Ethics approval and consent to participate
: This study was approved by the Greenville Health System Institutional Review Board (IRB Research Proposal: Pro00056104). Patient informed consent was waived because this research poses no more than minimal risk.
: Not applicable
: The authors declare that they have no competing interests.
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