2313
A 10-year-old asthmatic boy began to suffer from urticarial rash and moderately severe bronchospasm after 8 weeks' treatment with disodium cromoglycate.
 ( adverse event: after ,  A 10-year-old asthmatic boy: Subject, 10-year-old: Subject.Age, boy: Subject.Gender, urticarial rash and moderately severe bronchospasm: Effect, 8 weeks' treatment with disodium cromoglycate: Treatment, 8 weeks': Treatment.Time_elapsed, disodium cromoglycate: Treatment.Drug, asthmatic: Treatment.Disorder) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: adverse event,potential therapeutic event, Arguments type: Treatment.Disorder,Treatment.Time_elapsed,Treatment.Dosage,Subject.Race,Treatment.Drug,Treatment.Route,Subject.Disorder,Treatment.Freq,Treatment,Effect,Subject.Population,Treatment.Duration,Combination.Drug,Subject,Subject.Age,Subject.Gender. 
Text: {0} 
Answer:
 ( adverse event: after ,  A 10-year-old asthmatic boy: Subject, 10-year-old: Subject.Age, boy: Subject.Gender, urticarial rash and moderately severe bronchospasm: Effect, 8 weeks' treatment with disodium cromoglycate: Treatment, 8 weeks': Treatment.Time_elapsed, disodium cromoglycate: Treatment.Drug, asthmatic: Treatment.Disorder) 