Neurological aspects of: • Traumatic brain injury (TBI) • Mild TBI (mTBI) • Blast/military TBI • Concussion • Head injury • Post-traumatic neurodegeneration and dementia • Repetitive head impacts (RHI) • Sports concussion • Chronic traumatic encephalopathy (CTE) • Late effects of contact sports exposure (including rugby and association football in particular, alongside boxing/American football)