1. Boston University Alzheimer's Disease and CTE CenterDepartment of NeurologyBoston University School of MedicineBostonMAUSA
2. Department of PsychiatryPsychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical SchoolBostonMAUSA
3. Department of Child and Adolescent Psychiatry, Psychosomatic, and PsychotherapyLudwig‐Maximilian‐UniversityMunichGermany
4. Department of BiostatisticsBoston University School of Public HealthBostonMAUSA
5. Center for Biomedical ImagingDepartment of Anatomy and NeurobiologyBoston University School of MedicineBostonMAUSA
6. Data Coordinating CenterBoston University School of Public HealthBostonMAUSA
7. Concussion Legacy FoundationBostonMAUSA
8. Department of NeurosurgeryBoston University School of MedicineBostonMAUSA
9. Department of NeurosurgeryEmerson Hospital
10. Department of Anatomy and NeurobiologyBoston University School of MedicineBostonMAUSA
11. Framingham Heart StudyNational Heart, Lung, and Blood InstituteDepartment of EpidemiologyBoston University School of Public HealthBostonMAUSA
12. Department of Environmental HealthBoston University School of Public HealthBostonMAUSA
13. VA Boston Healthcare SystemU.S. Department of Veteran AffairsJamaica PlainMAUSA
14. Department of Pathology and Laboratory MedicineBoston University School of MedicineDepartment of Veterans Affairs Medical CenterBedfordMA
15. Center for Clinical Spectroscopy, Department of RadiologyBrigham and Women's Hospital, Harvard Medical SchoolBostonMAUSA
16. Department of RadiologyPsychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical SchoolBostonMAUSA
17. VA Boston Healthcare SystemU.S. Department of Veteran AffairsBrocktonMAUSA