17687
Donor cells were pulsed ( target ) or not ( control non - target ) with distinct CD8 T - cell epitopes , mixed in a 1 : 1 ratio and injected i . v . into immunized or non - immunized recipient mice .
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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