212
An episode of leukoencephalopathy is reported in a 13-year-old girl who, after standard radiotherapy for a posterior fossa medulloblastoma, received 8 treatments with a protocol containing a 4-hour infusion of 500 mg/m2 methotrexate and 12 mg intrathecal methotrexate.
 13-year-old girl who: Subject; 13-year-old: Subject.Age; girl: Subject.Gender; leukoencephalopathy: Effect; standard radiotherapy for a posterior fossa medulloblastoma, received 8 treatments with a protocol containing a 4-hour infusion of 500 mg/m2 methotrexate and 12 mg intrathecal methotrexate: Treatment; radiotherapy: Treatment.Drug; methotrexate: Treatment.Drug; intrathecal methotrexate: Treatment.Drug; infusion: Treatment.Route; 500 mg/m2: Treatment.Dosage; 12 mg: Treatment.Dosage
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:
 13-year-old girl who: Subject; 13-year-old: Subject.Age; girl: Subject.Gender; leukoencephalopathy: Effect; standard radiotherapy for a posterior fossa medulloblastoma, received 8 treatments with a protocol containing a 4-hour infusion of 500 mg/m2 methotrexate and 12 mg intrathecal methotrexate: Treatment; radiotherapy: Treatment.Drug; methotrexate: Treatment.Drug; intrathecal methotrexate: Treatment.Drug; infusion: Treatment.Route; 500 mg/m2: Treatment.Dosage; 12 mg: Treatment.Dosage