1. Daniel Bourbonnais, PhD, OTR, is Assistant Professor of Occupational Therapy, Ecole de Réadaptation, Université de Montréal, Montréal, Canada H2E-2C9
2. Sharyn Vanden Noven, PhD, PT, is Research Associate in the Department of Anatomy, Medical College of Pennsylvania, Philadelphia. (Mailing address: 3200 Henry Avenue, Philadelphia, Pennsylvania 19129.)