10748
Since 1989 , there has been an exponential increase in AEDs with 23 currently licensed for clinical use , and recently , there has been renewed and extensive interest in the use of saliva as an alternative matrix for AED TDM .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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