Dr. Suzanne Fletcher is an internist and clinical epidemiologist. She has been a leader in breast cancer screening and prevention research for over three decades. She has served as a member of the Canadian Task Force on the Periodic Health Examination, and the U.S. Preventive Services Task Force, and as Chair of the NCI International Workshop on Breast Cancer Screening. Dr. Fletcher also served on the National Cancer Institute Board of Scientific Advisors (1996-2002). She has published over 100 papers and has written numerous chapters in the area of breast cancer screening and prevention.