3891
These subclones were established by stable transfection of K562 / Dox cells with a plasmid vector expressing shRNA targeting the ABCB1 gene .
 Chemical: Dox
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Dox