12568
An episode of subacute encephalopathy after the infusion of a moderate dose of methotrexate ( 1500 mg / m2 ) ( MTX ) is reported in a young adult with metastastic gastric cancer .
 encephalopathy, 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:
 encephalopathy, methotrexate