21967
Only 2 ( 5 % ) of control subjects had abnormal CFR ( < 2 ) but 11 ( 17 % ) prediabetic subjects and 19 ( 42 % ) diabetic patients had abnormal CFR .
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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:
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