13053
METHODS : The Ace - 1 canine prostate cancer cell line was injected transabdominally under transrectal ultrasound ( TRUS ) guidance into the prostates of immunosuppressed , intact , adult male dogs .
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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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