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 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 adverse event: induction 