Funding for this research was provided by:
Heindl and Lew Topper foundations (N/A)
Received: 23 April 2020
Accepted: 7 October 2020
First Online: 9 November 2020
Ethics approval and consent to participate
: Both protocols were approved by the institutional review board of Holy Cross Hospital, Silver Spring, MD, USA. All subjects signed IRB-approved consent form.
: Not applicable
: The authors declare that they have no competing interests.