2475
The proportion of SMCs surviving in the implanted region was greater ( P less than 0 . 05 ) in the IGF - 1 - transfected group than in the vector or cell controls .
 SMCs, cell
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 SMCs, cell