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Multiple stages of malignant transformation of human endothelial cells modelled by co - expression of telomerase reverse transcriptase , SV40 T antigen and oncogenic N - ras .
 Anatomy: endothelial cells
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: endothelial cells