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Two cases of childhood-onset schizophrenia associated with clozapine-induced akathisia responsive to beta-blocker treatment are described.
 Two cases of childhood-onset schizophrenia: Subject; Two: Subject.Population; childhood: Subject.Age; akathisia responsive: Effect; clozapine: Treatment; clozapine: Treatment.Drug; schizophrenia: Treatment.Disorder
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:
 Two cases of childhood-onset schizophrenia: Subject; Two: Subject.Population; childhood: Subject.Age; akathisia responsive: Effect; clozapine: Treatment; clozapine: Treatment.Drug; schizophrenia: Treatment.Disorder