1962
HCMV immediate - early proteins were clearly shown to be responsible for elevating p53 levels in infected fibroblasts ; expression of HCMV immediate - early region 1 and 2 proteins resulted in elevation of p53 levels in transfected human fibroblasts .
 Anatomy: fibroblasts; Anatomy: fibroblasts
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: fibroblasts; Anatomy: fibroblasts