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We report the case of a 51-year-old man in whom IFN-alpha treatment was followed by recurrence of Graves' disease 10 years after thyroidectomy was performed and the patient was declared cured.
 ( adverse event: followed ,  a 51-year-old man: Subject, 51-year-old: Subject.Age, man: Subject.Gender, recurrence of Graves' disease: Effect, IFN-alpha treatment: Treatment, 10 years after thyroidectomy: Treatment, IFN-alpha: Treatment.Drug) 
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: followed ,  a 51-year-old man: Subject, 51-year-old: Subject.Age, man: Subject.Gender, recurrence of Graves' disease: Effect, IFN-alpha treatment: Treatment, 10 years after thyroidectomy: Treatment, IFN-alpha: Treatment.Drug) 