Received: 5 August 2020
Accepted: 18 March 2021
First Online: 1 April 2021
: The Greater Los Angeles VA Healthcare System Institutional Review Board (Los Angeles, CA USA) approved this study. As the research presented no more than minimal risk of harm to subjects and involved no procedures for which written consent would be normally required outside of the research context, the study received a waiver for documentation of consent from the Institutional Review Board, and verbal, recorded audio consent was approved.
: Not applicable.
: The authors declare that they have no competing interests.