19079
PURPOSE : Pharmacogenomics investigates interindividual genetic variability in the DNA sequence of drug targets , drug - metabolizing enzymes or disease genes , RNA expression , or protein translation of genes affecting drug response and drug safety .
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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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