12737
In contrast with endometriosis , adenomyotic lesions showed identical steroid hormone receptor expression , proliferative activity , bcl-2 expression and leukocyte subpopulations to eutopic endometrium , indicating different aetiologies for these disorders.
 steroid hormone receptor, bcl-2
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:
 steroid hormone receptor, bcl-2