1. Department of Rehabilitative Medicine, Birmingham VA Medical Center, Birmingham, Alabama.
2. Department of Physical Medicine and Rehabilitation, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama.
3. Department of Physical Medicine and Rehabilitation, Harvard University School of Medicine, Boston, Massachusetts.
4. Departments of Sexology, and Psychology, University du Québec à Montréal, Faculté des sciences humaines, Montréal, Québec, Canada.