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Article
August 30, 1902

FURTHER STATISTICAL STUDIES IN THE SPREAD OF MALIGNANT TUMORS.

JAMA. 1902;XXXIX(9):494. doi:10.1001/jama.1902.02480350032004
Abstract

In an extensive article Karl Kolb1 gives the results of his studies on the frequency and geographical distribution of cancer in southern Germany, and the inferences that he feels permitted to draw therefrom in regard to the etiology of cancer. Without entering into the numerous details of the work, attention may be called to some of the more striking points. It would seem that statistics based on an accurately controlled material no doubt would be of considerable value in the study of the etiology of cancer. This presupposes, however, an obligatory certification of deaths by physicians, not only in the cities, but also in the country. Kolb believes from his work that during the last decennial periods cancerous diseases in southern Germany have increased, not only apparently, but also actually, and that the actual increase is explainable only in small measure by the increased longevity. His figures show that

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