If a disease has a genetic basis, it will occur in familial aggregates. 如果一种疾病有遗传基础,它将以家族聚集性的方式发生。
Although familial aggregations of lung cancer have been reported since 1963 in the United States, it has been rarely documented in Taiwan. 摘要虽然肺癌的家族聚集性在美国自一九六三年就有报告,在台湾却罕有文献记载。