[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
