http://youtu.be/xFGxLTaO0WM In May 2012, NCI's Division of Cancer Epidemiology and Genetics (DCEG) welcomed David Schottenfeld, M.D. as a Visiting Scholar. Dr. Schottenfeld is the John G. Searle Professor Emeritus of Epidemiology at the University of Michigan School of Public Health and Professor Emeritus of Internal Medicine at the University of Michigan Medical School. He has collaborated with several investigators in DCEG, particularly, Joseph F. Fraumeni, Jr., M.D., Senior Investigator and Advisor to NCI, NIH and Former Division Director of DCEG. Drs. Fraumeni and Schottenfeld each have over fifty years of experience in the field of epidemiology, and they have co-edited the definitive textbook Cancer Epidemiology and Prevention. During this special visit, they participated in a panel discussion, moderated by Robert N. Hoover, M.D., Sc.D., Director of the Epidemiology and Biostatistics Program in DCEG, on "Cancer Epidemiology over the Last Half-Century and Thoughts on the Future". The discussion focused on their personal reflections about their past mentors and colleagues, noteworthy contributions to the field, and how cancer epidemiology has evolved as a discipline. In this video are some highlights of the discussion—to view the full discussion, visit: http://dceg.cancer.gov/fraumeni-schottenfeld-video.