9735
Chlorambucil central nervous toxicity : a significant side effect of chlorambucil therapy in childhood nephrotic syndrome .
 central nervous toxicity, Chlorambucil
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:
 central nervous toxicity, Chlorambucil