1823
While CYP form induction by Pyrethrins, Phenobarbital and related compounds can be associated with liver and thyroid gland tumour formation in rodents, epidemiological data for Phenobarbital suggests that such effects do not occur in humans.
 ( adverse event: induction ,  liver and thyroid gland tumour formation in rodents: Effect, Pyrethrins, Phenobarbital and related compounds: Treatment, Pyrethrins: Treatment.Drug, Phenobarbital: Treatment.Drug, related compounds: Treatment.Drug, related compounds: Combination.Drug, Phenobarbital: Combination.Drug, Pyrethrins: Combination.Drug) 
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: induction ,  liver and thyroid gland tumour formation in rodents: Effect, Pyrethrins, Phenobarbital and related compounds: Treatment, Pyrethrins: Treatment.Drug, Phenobarbital: Treatment.Drug, related compounds: Treatment.Drug, related compounds: Combination.Drug, Phenobarbital: Combination.Drug, Pyrethrins: Combination.Drug) 