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In this article , we review and discuss the concepts of drug repurposing , polypharmacology , chemogenomics , phenotypic screening and high - throughput in vivo testing of mixture - based libraries in an integrated manner .
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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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