Funding for this research was provided by:
U.S. Department of Veterans Affairs
Received: 4 February 2021
Accepted: 27 April 2021
First Online: 16 June 2021
: This study was approved by the Department of Veterans Affairs Washington DC Medical Center Institutional Review Board.
: This manuscript does not contain data from any individual person and this.criterion is therefore not applicable.
: The authors have no competing interests to disclose.