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Our current study compared the cumulative body burden of these estrogen quinones in serum samples taken from Taiwanese women with breast cancer ( n = 152 ) vs healthy controls ( n = 75 ) by using albumin ( Alb ) adducts as biomarkers .
 estrogen quinones
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 estrogen quinones