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A 59-year-old woman with myasthenia gravis who received a large dose of pyridostigmine bromide developed postoperative psychosis and was diagnosed as having bromide intoxication.
 ( adverse event: developed ,  A 59-year-old woman with myasthenia gravis: Subject, 59-year-old: Subject.Age, woman: Subject.Gender, postoperative psychosis and was diagnosed as having bromide intoxication.: Effect, a large dose of pyridostigmine bromide: Treatment, pyridostigmine bromide: Treatment.Drug, myasthenia gravis: Treatment.Disorder, a large dose: Treatment.Dosage) 
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 59-year-old woman with myasthenia gravis: Subject, 59-year-old: Subject.Age, woman: Subject.Gender, postoperative psychosis and was diagnosed as having bromide intoxication.: Effect, a large dose of pyridostigmine bromide: Treatment, pyridostigmine bromide: Treatment.Drug, myasthenia gravis: Treatment.Disorder, a large dose: Treatment.Dosage) 