4167
In normal rats , the media of small arteries ( 0 . 4 - - 0 . 2 mm in diameter ) previously was shown to contain intracellular vacuoles , identified ultrastructurally as herniations of one smooth muscle cell into another .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 None