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Tissue microarrays were constructed from matched normal and tumor tissue derived from patients ( n = 253 ) enrolled in a phase III trial of adjuvant 5 - fluorouracil - based chemotherapy versus postoperative observation alone .
 Anatomy: Tissue; Anatomy: tumor tissue
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: Tissue; Anatomy: tumor tissue