21995
When the observed Vss estimates were compared to the values predicted with the tissue - composition - based model , the observed Vss estimates for HAIs were 4 to 8 - fold larger than the predicted values whereas the Vss values for LAIs were comparable each other .
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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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