A groundbreaking 1943 German study by Eberhard Schairer and Erich Schöniger revealed the link between cigarettes and lung cancer years before British epidemiologists Richard Doll and Austin Bradford Hill. The research, conducted at the Scientific Institute for Research into the Hazards of Tobacco in Jena, found a strong correlation between heavy smoking and lung cancer development, though it failed to establish similar connections with stomach cancer.

Despite its scientific merit, the study was largely ignored in postwar Germany due to its association with Nazi health policies. Hitler's personal interest in anti-smoking campaigns, including a 100,000 Reichsmarks contribution from his office, tainted the research's legacy. The Nazi regime's broader health initiatives, which promoted clean living and racial purity, inadvertently discredited legitimate scientific findings about tobacco's dangers.

The delayed recognition of this early research had deadly consequences, particularly in West Germany where tobacco control measures lagged for decades. Historian Robert Proctor suggests the Nazi campaign against tobacco delayed effective public health measures by several decades. The episode serves as a stark reminder that scientific truth can be obscured by political associations, even when the underlying research is sound.