2580
A 22-year-old drug-abuser injected flunitrazepam tablets dissolved in tap water into her left femoral artery and presented with clinical signs of acute ischaemia of the left leg.
 ( adverse event: presented ,  A 22-year-old drug-abuser: Subject, 22-year-old: Subject.Age, drug-abuser: Subject.Disorder, acute ischaemia of the left leg: Effect, injected flunitrazepam tablets dissolved in tap water into her left femoral artery: Treatment, flunitrazepam: Treatment.Drug, injected: Treatment.Route, tablets dissolved in tap water: Treatment.Route) 
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: presented ,  A 22-year-old drug-abuser: Subject, 22-year-old: Subject.Age, drug-abuser: Subject.Disorder, acute ischaemia of the left leg: Effect, injected flunitrazepam tablets dissolved in tap water into her left femoral artery: Treatment, flunitrazepam: Treatment.Drug, injected: Treatment.Route, tablets dissolved in tap water: Treatment.Route) 