We have a range of cigarette packing in from different decades in our History of Medicine Collection.
In 1949, Richard Doll, a researcher working for the Medical Research Council, and Bradford Hill, an epidemiologist at the London School of Hygiene, began looking at lung cancer patients in London hospitals. The patients were asked about family history, diet and previous diseases. In 649 cases of lung cancer, two were non-smokers. Doll immediately gave up his own five cigarettes a day habit.
Doll and Hill extended their research to Cambridge, Bristol and Leeds and, after speaking to some 5,000 people, found the same results. In 1951, the researchers wrote to 59,600 doctors and asked about their smoking habits. They kept a watch on the doctors' health and published the results in 1954.