7474
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 .
 hemorrhage, aspirin
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 hemorrhage, aspirin