1454
The rabbits were sacrificed and the specimens were procured at 3 days , 1 , 2 , 3 , 4 and 6 weeks after surgery for histological observation , Chinese ink perfusion and CD34 immunohistochemistry .
 Anatomy: specimens
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: specimens