Article History
Received: 4 May 2019
Accepted: 27 June 2019
First Online: 15 July 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflicts of interest with regard to the preparation or publication of this manuscript.
: This research involved human subjects and informed consent was obtained from all subjects involved in this study. The study was reviewed and approved by the Human Subjects Independent Review Board and the Research Committee of the Southern Arizona Veterans Affairs Health Care System.