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Ticlopidine is an oral antiplatelet agent frequently utilized in the treatment of cerebrovascular disease and is rarely associated with severe bone marrow suppression, typically aplastic anemia.
 severe bone marrow suppression, typically aplastic anemia: Effect; Ticlopidine is an oral antiplatelet agent: Treatment; cerebrovascular disease: Treatment.Disorder; Ticlopidine: Treatment.Drug; oral: Treatment.Route
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:
 severe bone marrow suppression, typically aplastic anemia: Effect; Ticlopidine is an oral antiplatelet agent: Treatment; cerebrovascular disease: Treatment.Disorder; Ticlopidine: Treatment.Drug; oral: Treatment.Route