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11 - Ketotestosterone ( 11 - kT ) was administered over a two - week period to assess population differences in sensitivity to androgens .
 Chemical: 11 - Ketotestosterone; Chemical: 11 - kT; Chemical: androgens
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: 11 - Ketotestosterone; Chemical: 11 - kT; Chemical: androgens