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【多选题】
以下哪些情况提示存在家族聚集性A.
比较患者亲属与一般群体所研究疾病的患病率或发病率，前者高于后者
B.
比较患者亲属与对照亲属中所研究疾病患病率或发病率，前者高于后者
C.
患者亲属所研究疾病的患病率或发病率随亲缘级数的降低而降低
D.
某些数量性状，亲属对之间的相关大于非亲属对
E.
以上除D外，其余都提示有家族聚集性
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