Rosemarie A Filart -
Department of Physical Medicine and Rehabilitation, Johns Hopkins School of Medicine, 5601 Loch Raven Boulevard, Suite 403-6, Baltimore, MD 21239, USA
John R Bach -
Department of Physical Medicine and Rehabilitation, University of Medicine and Dentistry of New Jersey–New Jersey Medical School, University Hospital B-403, 150 Bergen Street, Newark, NJ 07103, USA