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In three of these patients the infection was clinically unsuspected; in the fourth, cutaneous herpes zoster developed after administration of 300 mg of cytarabine daily for the preceding five days.
 three of these patients: Subject; three: Subject.Population; cutaneous herpes zoster: Effect; 300 mg of cytarabine daily for the preceding five days: Treatment; 300 mg: Treatment.Dosage; cytarabine: Treatment.Drug; daily: Treatment.Freq; preceding five days: Treatment.Duration
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:
 three of these patients: Subject; three: Subject.Population; cutaneous herpes zoster: Effect; 300 mg of cytarabine daily for the preceding five days: Treatment; 300 mg: Treatment.Dosage; cytarabine: Treatment.Drug; daily: Treatment.Freq; preceding five days: Treatment.Duration