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To report two cases of warfarin therapy in which the addition of tolterodine resulted in prolonged international normalized ratios (INRs).
 two cases: Subject; two: Subject.Population; prolonged international normalized ratios (INRs): Effect; warfarin therapy in which the addition of tolterodine: Treatment; warfarin: Treatment.Drug; tolterodine: Treatment.Drug; warfarin: Combination.Drug; tolterodine: Combination.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:
 two cases: Subject; two: Subject.Population; prolonged international normalized ratios (INRs): Effect; warfarin therapy in which the addition of tolterodine: Treatment; warfarin: Treatment.Drug; tolterodine: Treatment.Drug; warfarin: Combination.Drug; tolterodine: Combination.Drug