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A novel method of assessing vascular endothelial function in cancer is via the quantification of circulating endothelial cells ( CEC ) .
 vascular endothelial, cancer, circulating endothelial cells, CEC
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 vascular endothelial, cancer, circulating endothelial cells, CEC