Know someone who’s been diagnosed with breast cancer? There’s a good chance that person has received hormone therapy. Estrogen receptor-positive (ER+) breast cancers account for about 75 percent of cases. Hormone therapy is one of the most common and effective treatments. However, it’s far from a cure. Some ER+ tumors develop resistance. Many patients enter... The post Breast cancer discovery could help prevent recurrence appeared first on Cold Spring Harbor Laboratory.