KnowraJohn SnowLinked fromLinked fromThe 27 pages that link to John Snow, each with the reason it gives.All 27Broader topic 1Related 24Compared with 2Edwin ChadwickCompared with: Snow’s evidence for waterborne cholera challenged explanations based primarily on foul air.Richard DollCompared with: Snow’s field investigation offers an earlier model of epidemiology tracing disease to an exposure.