Received: 30 May 2018
Accepted: 10 April 2019
First Online: 24 April 2019
Ethics approval and consent to participate
: This study was approved by the Johns Hopkins University IRB committee NA_00049144. In addition, only the response from patients were included and no other data. Verbal consent for participation was obtained from all participants, as directed by our institutional review board.
: Not Applicable.
: The authors declare that they have no competing interests.
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