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We report a case of severe anemia, which responded well to steroid therapy, in a patient receiving IL-2 plus IFN-alpha for metastatic renal cell carcinoma.
 ( adverse event: receiving ,  a patient: Subject, severe anemia: Effect, IL-2 plus IFN-alpha: Treatment, metastatic renal cell carcinoma: Treatment.Disorder, IL-2: Treatment.Drug, IFN-alpha: Treatment.Drug, IFN-alpha: Combination.Drug, IL-2: Combination.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: receiving ,  a patient: Subject, severe anemia: Effect, IL-2 plus IFN-alpha: Treatment, metastatic renal cell carcinoma: Treatment.Disorder, IL-2: Treatment.Drug, IFN-alpha: Treatment.Drug, IFN-alpha: Combination.Drug, IL-2: Combination.Drug) 