14830
Our laboratory previously demonstrated a highly significant correlation between in vitro IC ( 50 ) values against mrp2 using rat canalicular liver plasma membrane vesicles and in vivo biliary excretion ( Colombo et al . , 2012 ) .
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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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