15586
Pain was evaluated using a 100 - mm visual analogue scale ( VAS ) immediately following ( VAS1 ) and 30 minutes after ( VAS2 ) FNAC and was considered significant if >= 30 .
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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