1643
Autopsy evidence of herpesvirus infection was found in visceral organs of four leukemic patients who had received large doses of cytarabine (cytosine arabinoside; Ara-C) shortly before their death.
 four leukemic patients: Subject; four: Subject.Population; herpesvirus infection: Effect; large doses of cytarabine: Treatment; cytarabine (cytosine arabinoside; Ara-C): Treatment.Drug; leukemic: 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:
 four leukemic patients: Subject; four: Subject.Population; herpesvirus infection: Effect; large doses of cytarabine: Treatment; cytarabine (cytosine arabinoside; Ara-C): Treatment.Drug; leukemic: Treatment.Disorder