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Using the salicylic acid dosimeter and inputting virtually the same Wattages it is established that 862kHz is around 10 % more efficient at generating hydroxyl radicals than the 382kHz but both of these are far more effective than the other frequencies .
 Chemical: salicylic acid; Chemical: hydroxyl
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: salicylic acid; Chemical: hydroxyl