This is an exploratory study of geographical factors affecting cancer mortality in the United States. Data were collected by the National Cancer Institute for the years 1950-1969 and concern mortality from cancer of the trachea, bronchus, and lung combined for white males. The authors discuss differences in mortality by level of urbanization and how these might be affected by differences in smoking patterns. (SUMMARY IN FRE)

中文翻译：

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美国癌症死亡率：城市化的简单调整。

这是对影响美国癌症死亡率的地理因素的探索性研究。美国国家癌症研究所收集了1950年至1969年的数据，这些数据涉及白人男性因气管，支气管和肺部癌症所致的死亡率。作者讨论了按城市化水平划分的死亡率差异，以及吸烟方式的差异如何影响这些差异。（摘要）