8193
We find that lentiviral vectors expressing Tough Decoy inhibitors are less vulnerable than Bulged Sponge - encoding vectors to targeting by the cognate miRNA and less prone , therefore , to reductions in transfer efficiency .
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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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