Received: 8 April 2020
Accepted: 18 August 2020
First Online: 28 August 2020
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board committee of the VA Connecticut Healthcare System. A waiver of informed consent was obtained as the study used administrative data and there were no patient identifiers included.
: Not applicable.
: On behalf of all authors, the corresponding author states that there is no conflict of interest.