667
CONCLUSIONS: This case describes the clinically significant increase of INR in an elderly patient after adding a chemotherapy regimen of levamisole and 5-FU to a previous regimen of warfarin alone.
 an elderly patient: Subject; elderly: Subject.Age; increase of INR: Effect; levamisole and 5-FU: Treatment; warfarin: Treatment; levamisole: Treatment.Drug; 5-FU: Treatment.Drug; warfarin: Treatment.Drug; levamisole: Combination.Drug; 5-FU: Combination.Drug; warfarin: 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:
 an elderly patient: Subject; elderly: Subject.Age; increase of INR: Effect; levamisole and 5-FU: Treatment; warfarin: Treatment; levamisole: Treatment.Drug; 5-FU: Treatment.Drug; warfarin: Treatment.Drug; levamisole: Combination.Drug; 5-FU: Combination.Drug; warfarin: Combination.Drug