Question: What is a “cancer cluster”?
Answer: The cited reference describes “The term cancer cluster usually implies that more cases of cancer (usually of the same type) are identified within a certain group of people, geographic area, and time period than are expected, based on the size and age of the population. Usually the term refers to a highly localized situation such as a school, neighborhood, or workplace, although it is sometimes used to refer to a broader geographic area or larger subgroup of the population.” (Thum MJ and Sinks T. Understanding Cancer Clusters. CA Cancer J Clin 2004; 54:273–280)
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