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Clinical evaluation included the use of the Unified Parkinson ' s Disease Rating Scale ( UPDRS ) , Hoehn _ Yahr score and Schwab England activities of daily living ( ADL ) score in ' on ' - and ' off ' - drug conditions before surgery and 6 months after surgery .
 Disease: Parkinson ' s Disease
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: Parkinson ' s Disease