Funding for this research was provided by:
U.S. Department of Veterans Affairs (n/a)
Received: 11 May 2020
Accepted: 21 May 2020
First Online: 28 May 2020
Compliance with Ethical Standards
: All authors report no conflict of interest.
: This study does not contain any studies with human participants or animals.
: Informed consents to use pictures were obtained and were attached.
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