1891
To test this possibility , CD2 / F ( 1 ) mice were placed on synthetic diets containing 0 , 1 , or 2 % CLA for 6 weeks , before angiogenic challenge by s . c . injection with an angiogenic gel substrate ( Matrigel pellet assay ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 None