3275
A 59 - fold difference in GI ( 50 ) was observed between MDCKII - WT and MDCKII - ABCB1 cells ( 12 . 7 nM vs . 745 nM , p < 0 . 0001 ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None