3076
The difference in the prevalence of ER overexpression between high and low risk groups was not statistically significant (p = 0.095).
 protein: ER
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: ER 
Answer:
 protein: ER