2987
By incorporating a stent with posts that pivot about their base , such that a 10 % expansion at the commissures is realized , we were able to reduce the compressive commissural stressing from 250 to 150 kPa .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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