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The American Thyroid Association ( ATA ) feels that until an expert consensus review of existing data ( now underway by the ATA Guidelines Task Force ) can be completed , no evidence - based recommendation for or against the use of these methods can be made .
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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:
 None