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The first is a population of 1 , 228 Danish men ( 702 aged 20 - 29 years ; 532 aged 60 - 74 years ) from the Odense Androgen Study ( OAS ) , which was designed as a cross - sectional , population - based study .
 Chemical: Androgen
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: Androgen