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However , the PCOS women with insulin resistance exhibited significantly lower serum levels of magnesium and chromium ( p < 0 . 04 ) , in addition to higher levels of zinc and copper ( p < 0 . 04 ) .
 Chemical: magnesium; Chemical: chromium; Chemical: zinc; Chemical: copper
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: magnesium; Chemical: chromium; Chemical: zinc; Chemical: copper