1439
A 43-year-old woman with multiple sclerosis (MS) had nephrotic syndrome 21 months after starting treatment with interferon (IFN)-beta-1b (subcutaneous administration).
 ( adverse event: had ,  A 43-year-old woman with multiple sclerosis (MS): Subject, 43-year-old: Subject.Age, woman: Subject.Gender, nephrotic syndrome: Effect, 21 months after starting treatment with interferon (IFN)-beta-1b (subcutaneous administration): Treatment, multiple sclerosis: Treatment.Disorder, interferon (IFN)-beta-1b: Treatment.Drug, 21 months: Treatment.Time_elapsed) 
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: had ,  A 43-year-old woman with multiple sclerosis (MS): Subject, 43-year-old: Subject.Age, woman: Subject.Gender, nephrotic syndrome: Effect, 21 months after starting treatment with interferon (IFN)-beta-1b (subcutaneous administration): Treatment, multiple sclerosis: Treatment.Disorder, interferon (IFN)-beta-1b: Treatment.Drug, 21 months: Treatment.Time_elapsed) 