5752
However , unlike tumor invasion , trophoblast invasion of the uterus is stringently controlled in situ by local molecules such as transforming growth factor ( TGF ) beta .
 tumor, trophoblast, uterus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 tumor, trophoblast, uterus