A woman smoking a cigarette, showing the route through which the smoke passes to the heart and lungs, as a warning against smoking. Colour lithograph, ca. 1940.

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Credit

A woman smoking a cigarette, showing the route through which the smoke passes to the heart and lungs, as a warning against smoking. Colour lithograph, ca. 1940. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.