Received: 29 June 2020
Accepted: 15 November 2020
First Online: 26 November 2020
Ethics approval and consent to participate
: As the research presented no more than minimal risk of harm to subjects and involved no procedures for which written consent is normally required outside of the research context, verbal consent was approved by the IRB for this study. Verbal consent was captured by audio recording. The Greater Los Angeles VA Healthcare System Institutional Review Board (Los Angeles, CA USA) approved this study. Permission to access clinic-level data in the VA’s Corporate Data Warehouse (CDW) was received via the VA National Data Systems (NDS) review process.
: Not applicable.
: The authors declare that they have no competing interests.