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We have investigated the expression of the CD40 - CD154 system in 24 primary cultures derived from renal cell carcinomas , its correlation with tumor stage and its potential functional significance .
 Anatomy: cultures; Anatomy: renal cell carcinomas; Anatomy: tumor
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: cultures; Anatomy: renal cell carcinomas; Anatomy: tumor