791
In addition , serum concentration of the angiogenesis inhibitor , endostatin , decreased significantly after primary tumor removal .
 Anatomy: serum; Anatomy: primary tumor
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: serum; Anatomy: primary tumor