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Here , we present a brief overview of the development of PCSK9 inhibitors and highlight the effect of currently prescribed LDL - C - lowering drugs on PCSK9 , and the strategies that are being explored for its therapeutic inhibition .
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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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