29509
In the TKR model , the average cost per patient for FXaIs and LMWHs were $ 18 , 804 and $ 18 , 991 , respectively , and the QALYs were 0 . 935 and 0 . 931 .
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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:
 None