1. GM Jensen, PT, PhD, is Associate Professor, Department of Physical Therapy, School of Pharmacy and Allied Health, and Faculty Associate, Center for Health Policy and Ethics, Creighton University, Omaha, NE 68178 (USA).
2. J Gwyer, PT, PhD, is Associate Clinical Professor, Director of Doctoral Studies, and Doctor of Physical Therapy, Duke University, Durham, NC
3. KF Shepard, PT, PhD, FAPTA, is Professor and Director, Doctor of Philosophy Program in Physical Therapy, Department of Physical Therapy, College of Allied Health Professions, Temple University, Philadelphia, Pa
4. LM Hack, PT, PhD, MBA, FAPTA, is Associate Professor and Director, Department of Physical Therapy, College of Allied Health Professions, Temple University