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Alternating sinus rhythm and intermittent sinoatrial (S-A) block was observed in a 57-year-old woman, under treatment for angina with 80 mg propranolol daily.
 a 57-year-old woman: Subject; 57-year-old: Subject.Age; woman: Subject.Gender; Alternating sinus rhythm and intermittent sinoatrial (S-A) block: Effect; 80 mg propranolol daily.: Treatment; 80 mg: Treatment.Dosage; propranolol: Treatment.Drug; daily: Treatment.Freq; angina: 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:
 a 57-year-old woman: Subject; 57-year-old: Subject.Age; woman: Subject.Gender; Alternating sinus rhythm and intermittent sinoatrial (S-A) block: Effect; 80 mg propranolol daily.: Treatment; 80 mg: Treatment.Dosage; propranolol: Treatment.Drug; daily: Treatment.Freq; angina: Treatment.Disorder