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The authors describe a patient with hemiparesis who developed the syndrome of irreversible lithium-effectuated neurotoxicity (SILENT) while being treated with lithium for a manic episode.
 ( adverse event: developed ,  a patient with hemiparesis: Subject, hemiparesis: Subject.Disorder, irreversible lithium-effectuated neurotoxicity (SILENT): Effect, lithium for a manic episode: Treatment, lithium: Treatment.Drug, manic episode: Treatment.Disorder) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: adverse event,potential therapeutic event, Arguments type: Treatment.Disorder,Treatment.Time_elapsed,Treatment.Dosage,Subject.Race,Treatment.Drug,Treatment.Route,Subject.Disorder,Treatment.Freq,Treatment,Effect,Subject.Population,Treatment.Duration,Combination.Drug,Subject,Subject.Age,Subject.Gender. 
Text: {0} 
Answer:
 ( adverse event: developed ,  a patient with hemiparesis: Subject, hemiparesis: Subject.Disorder, irreversible lithium-effectuated neurotoxicity (SILENT): Effect, lithium for a manic episode: Treatment, lithium: Treatment.Drug, manic episode: Treatment.Disorder) 