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RESULTS: Both cases presented here describe corneal ulcers that persisted and showed signs of worsening during weeks of frequent topical dosing with moxifloxacin.
 Both cases: Subject; corneal ulcers that persisted: Effect; weeks of frequent topical dosing with moxifloxacin: Treatment; topical: Treatment.Route; moxifloxacin: Treatment.Drug; frequent: Treatment.Freq
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:
 Both cases: Subject; corneal ulcers that persisted: Effect; weeks of frequent topical dosing with moxifloxacin: Treatment; topical: Treatment.Route; moxifloxacin: Treatment.Drug; frequent: Treatment.Freq