1. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts2Department of Neurology, Boston University School of Medicine, Boston, Massachusetts
2. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts3Department of Orthopaedic Surgery, Stanford University, Stanford, California
3. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts4VA Boston Healthcare System, US Department of Veteran Affairs, Boston, Massachusetts5Department of Veterans Affairs Medical Center, Bedford, Massachusetts
4. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts2Department of Neurology, Boston University School of Medicine, Boston, Massachusetts4VA Boston Healthcare System, US Department of Veteran Affairs, Boston, Massachusetts5Department of Veterans Affairs Medical Center, Bedford, Massachusetts
5. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts
6. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts6Concussion Legacy Foundation, Waltham, Massachusetts
7. Concussion Legacy Foundation, Waltham, Massachusetts
8. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts7Data Coordinating Center, Boston University School of Public Health, Boston, Massachusetts
9. Interfaculty Initiative in Health Policy, Harvard University, Boston, Massachusetts9Division of Sports Medicine, Boston Children’s Hospital, Boston, Massachusetts
10. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts10Department of Biostatistics, Boston University, Boston, Massachusetts11School of Public Health, Boston University, Boston, Massachusetts
11. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts2Department of Neurology, Boston University School of Medicine, Boston, Massachusetts4VA Boston Healthcare System, US Department of Veteran Affairs, Boston, Massachusetts12Department of Pathology, Boston University School of Medicine, Boston, Massachusetts
12. School of Public Health, Boston University, Boston, Massachusetts13Department of Epidemiology, Boston University, Boston, Massachusetts
13. School of Public Health, Boston University, Boston, Massachusetts14Department of Environmental Health, Boston University, Boston, Massachusetts
14. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts2Department of Neurology, Boston University School of Medicine, Boston, Massachusetts6Concussion Legacy Foundation, Waltham, Massachusetts15Department of Neurosurgery, Emerson Hospital, Concord, Massachusetts
15. Department of Neurology, Boston University School of Medicine, Boston, Massachusetts20Braintree Rehabilitation Hospital, Braintree, Massachusetts
16. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts2Department of Neurology, Boston University School of Medicine, Boston, Massachusetts21Department of Neurosurgery, Boston University School of Medicine, Boston, Massachusetts22Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, Massachusetts
17. Boston University Alzheimer’s Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts4VA Boston Healthcare System, US Department of Veteran Affairs, Boston, Massachusetts5Department of Veterans Affairs Medical Center, Bedford, Massachusetts12Department of Pathology, Boston University School of Medicine, Boston, Massachusetts