1740
This study investigates the effect of the digestion enzyme ( collagenase II , collagenase A / trypsin inhibitor , or collagenase plus dispase ) on the uptake of xenobiotics into , and efflux from , hepatocytes .
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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