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Since 1995 , SCS has been diagnosed in Japan based on serum cortisol levels >= 3 mu g / dl ( measured by radioimmunoassay [ RIA ] ) after a 1 mg DST .
 Chemical: cortisol
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: cortisol