African American women more likely to have ER-negative breast cancer

[News]

American women of African ancestry are more likely than European Americans to have estrogen-receptor-negative (ER-negative) breast cancer. There continues to be discussion about the role of low levels of vitamin D in the development of breast cancer for these women.

More... (http://www.news-medical.net/news/20120406/African-American-women-more-likely-to-have-ER-negative-breast-cancer.aspx)