3552
In an animal experiment , marrow cells were infiltrated into the walls of long - fibril expanded polytetrafluoroethylene ( ePTFE ) vascular grafts .
 Anatomy: marrow cells; Anatomy: vascular grafts
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: marrow cells; Anatomy: vascular grafts