6977
The oestrogen receptor codon 10 polymorphism detected in breast cancer is also present in non-malignant cells .
 oestrogen receptor, non-malignant cells, codon 10
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 oestrogen receptor, non-malignant cells, codon 10