3398
A 73-year - old woman presented with fever and cough 2 weeks after completing the third cycle of fludarabine for chronic lymphocytic leukemia ( CLL ) .
 cough, fludarabine; fever, fludarabine
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:
 cough, fludarabine; fever, fludarabine