CARE Consortium Investigators (Alphabetically by last name): Holly Benjamin, MD (Department of Rehabilitation Medicine and Pediatrics, University of Chicago, Chicago, IL, USA); Thomas Buckley, Ed.D, ATC (University of Delaware, Newark, DE, USA); Kenneth L. Cameron, PhD, MPH, ATC, FNATA (Keller Army Hospital, United States Military Academy, West Point, NY, USA); James R. Clugston, MD (Community Health and Family Medicine, University of Florida, Gainesville, FL, USA); Christopher D’Lauro, PhD (Department of Behavioral Sciences and Leadership, United States Air Force Academy, Colorado Springs, CO, USA); Patrick G. O’Donnell, MHA, COTA/L (UMass Memorial Health, Worcester, MA USA); Stefan M. Doma, PhD (Department Head of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA, USA); James T. Eckner, MD, MS (Department of Physical Medicine and Rehabilitation, University of Michigan, Ann Arbor, MI, USA); Luis A Feigenbaum, PT, DPT, ATC/L (University of Miami, Miami, FL, USA); Joshua T. Goldman, MD, MBA (Departments of Family Medicine and Orthopaedic Surgery, University of California, Los Angeles, Los Angeles, CA, USA); Joseph B. Hazzard, Jr., EdD, ATC (Health and Human Performance Institute, University of Houston-Clear Lake, Houston, TX, USA); Thomas Kaminski, PhD, ATC (University of Delaware, Newark, DE, USA); Louise Kelly, PhD (Department of Exercise Science, California Lutheran University, Thousand Oaks, CA, USA); Anthony Kontos, PhD (Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA); Laura Lintner, DO (Department of Family and Community Medicine, Wake Forest University, Winston-Salem, NC, USA); Jane McDevitt, PhD, ATC, CSCS (Department of Health and Rehabilitation Sciences, Temple University, Philadelphia, PA); Jason P. Mihalik, PhD, CAT(C], ATC, FACSM (Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA); Christopher M. Miles, MD (Department of Family and Community Medicine, Wake Forest University, Winston-Salem, NC, USA); Justus Ortega, PhD (North Coast Concussion Program, School of Applied Health, California State Polytechnic University, Humboldt, Arcata, CA, USA); Nicholas Port, PhD (School of Optometry, Indiana University, Bloomington, Indiana, USA); Margot Putukian (Athletic Medicine, Princeton University, Princeton, NJ, USA); Adam Susmarski, DO, FACSM, RMSK (Department Head Brigade Orthopaedics and Sports Medicine, United States Naval Academy, Annapolis, MD, USA). The authors would like to thank April Hoy, MS, ATC, CSCS (School of Behavioral and Applied Sciences, Azusa Pacific University, Azusa, CA, USA); Christina Master, MD (Division of Orthopedics, Children’s Hospital of Philadelphia, Philadelphia, PS, USA); Col Darren Campbell, USAF (retired], MD (Intermountain Sports Medicine, Ogden, UT, USA); Col Steven J. Svoboda, USA (retired], MD (MedStar Orthopaedic Institute, Alexandria, VA, USA); Sara P.D. Chrisman, MD, MPH (Center for Child Health, Behavior and Development, Seattle Children’s Research Institute, Seattle, WA, USA); Dianne Langford, PhD (Lewis Katz School of Medicine, Temple University, Philadelphia, PS, USA); Gerald McGinty, PT, DPT (United States Air Force Academy, Air Force Academy, Colorado, USA); Jonathan C. Jackson, MD (United States Air Force Academy, Air Force Academy, CO, USA); John DiFiori, MD (University of California, Los Angeles, Los Angeles, CA, USA]; Scott Anderson ATC (University of Oklahoma, Norman, OK, USA]; M. Alison Brooks, MD, MPH (Department of Orthopedics, University of Wisconsin, Madison, WI, USA) and staff at each of the CARE participation sites.