6580
CONCLUSIONS : LTG overdose may result in a severe but reversible encephalopathy , a previously undescribed phenomenon .
 encephalopathy, LTG
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, LTG