Two hundred years of cancer research.

From the Yale Comprehensive Cancer Center and Smilow Cancer Hospital at Yale–New Haven, Yale University School of Medicine, and Yale University School of Public Health — all in New Haven, CT (V.T.D.); the National Cancer Institute, National Institutes of Health, and the Uniformed Services University of the Health Sciences School of Medicine — all in Bethesda, MD (S.A.R.); and George Washington University School of Medicine, Washington, DC (S.A.R.). Address reprint requests to Dr. DeVita at the Yale Comprehensive Cancer Center and Smilow Cancer Hospital at Yale–New Haven, 333 Cedar St., PO Box 208028, New Haven, CT 06520-8028, or at vincent [email protected].