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We targeted the rapid and delayed time domain by injecting corticosterone ( CORT , 1 mg / kg , s . c . ) at 30 min ( rapid ) or 180 min ( delayed ) respectively prior to behavioural testing , during the final 3 days of the behavioural paradigm .
 Chemical: corticosterone; Chemical: CORT
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: corticosterone; Chemical: CORT