Article History
First Online: 18 April 2018
Compliance with Ethical Standards
: This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors. The authors (Dr. Kennedy, Dr. Iaizzo, Dr. Fayn, and Dr. Singh) certify that they have no affiliations with or involvement in any organization or entity with any financial interest or non-financial interest in the subject matter or materials discussed in this article. This study was determined exempt from the Clement J. Zablocki VA Medical Center Institutional Review Board approval requirements because of the retrospective chart review design and collection of data without identifiers or a link to identifiers. This study has been performed in accordance with the ethical standards of the Declaration of Helsinki.