2
We describe a patient who developed NEH on three separate occasions provoked by two different chemotherapeutic agents -- cytarabine and mitoxantrone .
 NEH, cytarabine; NEH, mitoxantrone
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:
 NEH, cytarabine; NEH, mitoxantrone