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After infliximab treatment, additional sleep studies revealed an increase in the number of apneic events and SaO2 dips suggesting that TNFalpha plays an important role in the pathophysiology of sleep apnea.
 increase in the number of apneic events and SaO2 dips: Effect; infliximab: Treatment; pathophysiology of sleep apnea: Treatment.Disorder; infliximab: Treatment.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:
 increase in the number of apneic events and SaO2 dips: Effect; infliximab: Treatment; pathophysiology of sleep apnea: Treatment.Disorder; infliximab: Treatment.Drug