4385
The human CYP3A subfamily comprises four members ( CYP3A4 , CYP3A5 , CYP3A7 , CYP3A43 ) encoded on human chromosome 7 .
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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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