639
We report a case in which hemorrhage occurred in an asymptomatic falx meningioma known beforehand, after the internal use of low-dose aspirin for 16 months.
 adverse event: occurred 
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: occurred 