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Possible mechanisms by which clonidine decreases spasticity are described, probable mechanisms of induced bradycardia are reviewed, and specific treatment recommendations for the use of clonidine in spinal cord injured patients are presented.
 bradycardia: Effect; clonidine: Treatment; clonidine: Treatment.Drug; spinal cord injured: Treatment.Disorder
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:
 bradycardia: Effect; clonidine: Treatment; clonidine: Treatment.Drug; spinal cord injured: Treatment.Disorder