2591
To clarify the role of Ang - 2 for angiogenesis and tumor growth in a definite genetic experimental setting , the present study was aimed at comparatively studying the growth of different tumors in wild - type and Ang - 2 - deficient mice .
 Anatomy: tumor; Anatomy: tumors
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: tumor; Anatomy: tumors