8021
Since this transporter has been extensively related to the active secretion of drugs into milk , the potential in vivo effect of this polymorphism on secretion of xenobiotics in livestock could have striking consequences for milk production , the dairy industry , and public health .
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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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