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We describe a patient who experienced chronic nausea and an episode of confusion while treated with a small, stable dose of oral morphine in the setting of mild renal insufficiency.
 a patient: Subject; mild renal insufficiency: Subject.Disorder; chronic nausea and an episode of confusion: Effect; a small, stable dose of oral morphine: Treatment; small, stable dose: Treatment.Dosage; oral: Treatment.Route; morphine: 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:
 a patient: Subject; mild renal insufficiency: Subject.Disorder; chronic nausea and an episode of confusion: Effect; a small, stable dose of oral morphine: Treatment; small, stable dose: Treatment.Dosage; oral: Treatment.Route; morphine: Treatment.Drug