1. J.D. Ries, PT, PhD, GCS, is Assistant Professor, Program in Physical Therapy, Marymount University, 2807 N Glebe Rd, Arlington, VA 22207 (USA).
2. J.L. Echternach, PT, DPT, EdD, ECS, FAPTA, is Professor and Eminent Scholar Emeritus, School of Physical Therapy, Old Dominion University, Norfolk, Virginia, and Adjunct Professor, Department of Physical Therapy, Nova Southeastern University, Fort Lauderdale, Florida.
3. L. Nof, PT, PhD, is Professor, Department of Physical Therapy, Nova Southeastern University.
4. M. Gagnon Blodgett, PsyD, is Clinical Assistant Professor, Department of Geriatrics, Nova Southeastern University.