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The sensitivities and specificities of the ARG / GHRP - 2 tests compared to the ITT for the diagnosis of severe AGHD ( peak GH responses to ITT <= 1 . 8 mu g / L ) were 93 . 8 % / 81 . 3 % and 85 . 5 % / 94 . 5 % , respectively .
 Chemical: ARG
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: ARG