11194
Inasmuch as a multitude of neurotransmitters and receptors play a role in the etiology of dyskinesia , we propose that to optimally alleviate this motor complication , it may be necessary to develop combined treatment approaches that will target simultaneously more than one neurotransmitter system .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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