Epidemiology and the prevention of cancer: some recent developments

  title={Epidemiology and the prevention of cancer: some recent developments},
  author={Sir Richard Doll},
  journal={Journal of Cancer Research and Clinical Oncology},
Epidemiology, like other branches of medical science, advances for the most part slowly on a broad front. Occasionally, however, observations are made that alter our thinking about the way disease is produced, open up qualitatively new methods for the control of disease, or lead to such effective intervention that the results can be seen in a change in the trend of mortality in a whole country. One such change in thinking occurred about 20 years ago, when the cumulative effect of a series of… CONTINUE READING