Received: 12 June 2019
Accepted: 21 November 2019
First Online: 16 December 2019
Ethics approval and consent to participate
: The Johns Hopkins Institutional Review Board prospectively granted approval for this study (No 00116226), which followed the tenets of the Declaration of Helsinki. Written informed consent was obtained from each patient for inclusion in the study, which was HIPAA-compliant.
: Not applicable.
: The authors declare that they have no competing interests.