1. Division of Communication Disorders, University of Wyoming, Laramie, WY, USA
2. Department of Epidemiology & Biostatistics, Michigan State University, East Lansing, MI, USA
3. Department of Health Systems & Sciences Research, Drexel University, PA, USA
4. Department of Epidemiology & Biostatistics, Drexel University, PA, USA
5. Department of Community Health & Prevention, Drexel University, PA, USA
6. Sergievesky Center, Columbia University Medical Center, New York, NY, USA
7. Department of Pediatrics, Helen DeVos Children’s Hospital, Grand Rapids, MI, USA
8. Department of Physical Medicine and Rehabilitation, University of Michigan, Ann Arbor, MI, USA
9. Marshfield Clinic Research Institute, Marshfield, WI, USA
10. Waisman Center, University of Wisconsin–Madison, Madison, WI, USA
11. CanChild Centre for Childhood Disability Research, McMaster University, Hamilton, ON, Canada
12. Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA
13. Division of Pediatric Neurology, Helen DeVos Children’s Hospital, Grand Rapids, MI, USA
14. Department of Pediatrics & Human Development, Michigan State University, East Lansing, MI, USA