title: The postconcussive syndrome: formulating the problem.
mesh_terms: D001924:Brain Concussion / Q000150:complications*; D002908:Chronic Disease; D006801:Humans; D007049:Iatrogenic Disease / Q000175:diagnosis / Q000209:etiology; D019838:Neck Injuries; D013313:Stress Disorders, Post-Traumatic / Q000175:diagnosis / Q000209:etiology; D013577:Syndrome