Charles Perou, PhD (IMAGE) UNC Lineberger Comprehensive Cancer Center Caption “This study involved extensive collaboration among many institutions to advance our understanding of breast cancer. Our knowledge of breast cancer biology comes from studies of original tumors, but when people die of breast cancer, it is from the metastatic disease, so our lack of understanding of the biology of metastasis hinders patient care.” Credit UNC Lineberger Comprehensive Cancer Center Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.