See the report in The New England Journal of Medicine (Volume 356:1295-1303 March 29, 2007, Number 13):
MRI Evaluation of the Contralateral Breast in Women with Recently Diagnosed Breast Cancer
Constance D. Lehman, M.D., Ph.D., Constantine Gatsonis, Ph.D., Christiane K. Kuhl, M.D., R. Edward Hendrick, Ph.D., Etta D. Pisano, M.D., Lucy Hanna, M.S., Sue Peacock, M.S., Stanley F. Smazal, M.D., Daniel D. Maki, M.D., Thomas B. Julian, M.D., Elizabeth R. DePeri, M.D., David A. Bluemke, M.D., Ph.D., Mitchell D. Schnall, M.D., Ph.D., for the ACRIN Trial 6667 Investigators Group.