Funding for this research was provided by:
U.S. Department of Veterans Affairs (RX002413-01A2)
Text and Data Mining valid from 2019-09-03
Received: 1 July 2019
Accepted: 21 August 2019
First Online: 3 September 2019
Ethics approval and consent to participate
: This study has been approved by the Michael J. Crescenz VA Medical Center and all participants provide written consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.