Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for London County Council]
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Figure 3
STANDARDISED MORTALITY RATIOS FROM LUNG CANCER (MALES ONLY)
METROPOLITAN BOROUGHS 1950-1953
(England & Wales = 100)
100 AND UNDER 125
125 150
150 175
175 200
200 AND OVER