4111
The update information testifies about protumoral activity of neutrophils : they migrate to a tumor and promote angiogenesis and metastasis at late stages of the tumor .
 protumoral, neutrophils, tumor, tumor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 protumoral, neutrophils, tumor, tumor