1. D.J. Silkwood-Sherer, PT, DHS, HPCS, Graduate Program in Physical Therapy, Herbert H. and Grace A. Dow College of Health Professions, 1202 Health Professions Bldg, Central Michigan University, Mt Pleasant, MI 48859 (USA).
2. C.B. Killian, PT, PhD, Krannert School of Physical Therapy, University of Indianapolis, Indianapolis, Indiana.
3. T.M. Long, PT, PhD, FAPTA, Center for Child and Human Development, Georgetown University, Washington, DC.
4. K.S. Martin, PT, DHS, Krannert School of Physical Therapy, University of Indianapolis.