Austin Bradford Hill

English epidemiologist and statistician

Sir Austin Bradford Hill FRS (8 July 189718 April 1991), English epidemiologist and statistician, pioneered the randomized clinical trial and, together with Sir Richard Doll, demonstrated the connection between cigarette smoking and lung cancer.


  • "All scientific work is incomplete – whether it be observational or experimental. All scientific work is liable to be upset or modified by advancing knowledge. That does not confer upon us a freedom to ignore the knowledge we already have, or to postpone the action that it appears to demand at a given time."
    • “The Environment and Disease: Association or Causation?,” Proceedings of the Royal Society of Medicine, 58 (1965), 295-300

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