Several: Family hereditary risks, drug abusers (cocaine, amphetamines, designer hallucinagenics), alcoholics, certain medications (welbutrin, tramadol, etc), prior head injuries, prior brain infections or strokes or hemorrhages, congenital structural anomalies (vascular malformations, mesial temporal sclerosis), prior brain surgery, brain tumors, multiple sclerosis, arteritis, vasculitis.
Answered 9/28/2016
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