3876
Data on viability , correlation between apparent permeability coefficients ( P ( app ) ) and fraction absorbed ( f ( a ) ) after oral and colonic administration , regional permeability , active uptake and efflux of drugs as well as intestinal metabolism were compiled from experiments using 159 human donors .
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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