20574
In this review there will be a summary on current knowledge about the expression , regulation and function of microRNAs in the most common diseases of the cardiovascular system as well as a presentation of and discussion about their promising future role as new biomarkers and therapeutic targets .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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