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Contributors The author listed has contributed sufficiently to the project in order to be included as author and only those who are qualified to be authors are listed in the byline. The manuscript has not been previously published and is not under consideration in the same or substantially similar form in any other peer-reviewed media.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Disclaimer The views expressed in this article are those of the author and do not necessarily reflect the position or policy of the US Department of Veterans Affairs, the US Government or the VA National Center for Ethics in Health Care.
Competing interests None declared.
Patient consent Not requried.
Provenance and peer review Commissioned; internally peer reviewed.