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This report describes an approach for the identification and accurate quantitation of human UGT1A1 in complex biological matrices using liquid chromatography / mass spectrometry / mass spectrometry ( LC - MS / MS ) analysis of protein digests .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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