2203
This case demonstrates the value of DWI in evaluation and diagnosis of sub - acute toxic leukoencephalopathy in patients being treated with methotrexate .
 sub - acute toxic leukoencephalopathy, methotrexate
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:
 sub - acute toxic leukoencephalopathy, methotrexate