4656
Interestingly , we find that the deletion of miR - BHRF1 - 2 reduced the expression level of miR - BHRF1 - 3 and possibly that of miR - BHRF1 - 1 , demonstrating that the expression of one miRNA can potentiate the expression of other miRNAs located in the same cluster .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
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