1. Department of Neurology, Boston University Alzheimer's Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts.
2. Boston University Alzheimer's Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts.
3. Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts.
4. Department of Otolaryngology–Head and Neck Surgery, Boston University School of Medicine, Boston, Massachusetts.
5. Data Coordinating Center, Boston University School of Public Health, Boston, Massachusetts.
6. Department of Biostatistics, Data Coordinating Center, Boston University School of Public Health, Boston, Massachusetts.
7. Interfaculty Initiative in Health Policy, Cambridge, Massachusetts.
8. Department of Neurology and Neurosurgery, Boston University Alzheimer's Disease and CTE Center, Boston University School of Medicine, Boston, Massachusetts.
9. Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, Massachusetts.