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We review the literature on previously reported cases of cutaneous necrosis after injection of standard interferon alfa or pegylated interferon alfa-2b and discuss the different pathophysiologic mechanisms that might be involved.
 cutaneous necrosis: Effect; standard interferon alfa: Treatment; pegylated interferon alfa-2b: Treatment; injection: Treatment.Route; standard interferon alfa: Treatment.Drug; pegylated interferon alfa-2b: Treatment.Drug
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: adverse event 
  Option: Treatment.Freq, Subject.Population, Combination.Drug, Subject.Gender, Treatment.Duration, Subject, Effect, Treatment, Treatment.Disorder, Subject.Disorder, Treatment.Route, Subject.Race, Treatment.Time_elapsed, Treatment.Dosage, Subject.Age, Treatment.Drug 
Text: {0} 
Answer:
 cutaneous necrosis: Effect; standard interferon alfa: Treatment; pegylated interferon alfa-2b: Treatment; injection: Treatment.Route; standard interferon alfa: Treatment.Drug; pegylated interferon alfa-2b: Treatment.Drug