1. JA Shrader, PT, CPed, is Senior Clinical Specialist and Foot Clinic Coordinator, Physical Therapy Section, Department of Rehabilitation Medicine, Warren Grant Magnuson Clinical Center, National Institutes of Health, Department of Health and Human Services, 10 Center Dr, Bethesda, MD 20892-1604 (USA)
2. KL Siegel, PT, MA, is Senior Research Physical Therapist, Physical Disabilities Branch, Department of Rehabilitation Medicine, Warren Grant Magnuson Clinical Center, National Institutes of Health, Department of Health and Human Services