From the Department of Physical Medicine and Rehabilitation, Metropolitan Hospital, New York, New York (ELA, CNM); and Franklin and Marshall College, Lancaster, Pennsylvania (DLA).

All correspondence should be addressed to: Eric L. Altschuler, MD, PhD, Department of Physical Medicine and Rehabilitation, Metropolitan Hospital, 1901 First Ave, New York, NY 10029.

Financial disclosure statements have been obtained, and no conflicts of interest have been reported by the authors or by any individuals in control of the content of this article.