Funding for this research was provided by:
U.S. Department of Veterans Affairs (HSR&D grant IIR 15-379, CIN 13-410)
Received: 1 October 2020
Accepted: 1 July 2021
First Online: 16 August 2021
: This study was approved by the Durham, NC Veterans Affairs Institutional Review Board. Informed consent was obtained from all patients for being included in the study. Verbal consent was obtained because patients were contacted by phone only and were enrolled nationally. The procedure was approved by the Institutional Review Board.
: Not applicable.
: The authors declare that they have no competing interests.