1829
VEGF - A ( 165 ) mainly contributes to increased serum VEGF levels and may serve as a diagnostic tool in advanced - stage neuroblastoma .
 serum, neuroblastoma
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 serum, neuroblastoma