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Exposure to PFOS decreased supernatant testosterone ( T ) , increased estradiol ( E2 ) concentrations in H295R cell medium and altered the expression of several genes involved in steroidogenesis .
 Chemical: PFOS; Chemical: testosterone; Chemical: estradiol
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: PFOS; Chemical: testosterone; Chemical: estradiol