1. Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, United States
2. Nebraska Center for Research on Children, Youth, Families and Schools, University of Nebraska-Lincoln, Lincoln, NE, United States
3. School of Kinesiology, Louisiana State University, Baton Rouge, LA, United States
4. Division of Physical Therapy, University of Washington, Seattle, WA, United States
5. Department of Physical Therapy, Duquesne University, Pittsburgh PA, United States
6. Department of Physical Therapy, University of Delaware, Newark, DE, United States
7. Munroe-Meyer Institute, University of Nebraska Medical Center, Omaha, NE, United States