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Original Research |

Clinical Epidemiology: I. The Populational Experiments of Nature and of Man in Human Illness

Ann Intern Med. 1968;69(4):807-820. doi:10.7326/0003-4819-69-4-807
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INTRODUCTION: THE EPIDEMIOLOGIST'S MIGRATION TO CLINICAL MEDICINEEpidemiology gets its name from the study of epidemics. Because the word epidemic has traditionally been applied to an outbreak of contagion, infectious diseases have been the classical source of concepts, methods, and technology in epidemiologic research. Almost all the activities of contemporary epidemiology, including its customary academic location in Departments of Public Health and Preventive Medicine, are derived from a heritage of infectious disease and from the pioneering role of microbiology in the evolution of medical knowledge.In the chronology of medical science, infectious diseases were among the first of man's many


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