6753
A 74-year - old patient with idiopathic Parkinson 's disease was evaluated for unintended sleep episodes that occurred after long - term treatment with 400 mg / day of L - dopa .
 unintended sleep episodes, L - dopa
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:
 unintended sleep episodes, L - dopa