Low copy number of the complement component gene C4A is associated with the presence of autoantibodies and occurrence of systemic autoimmune inflammatory disease.

中文翻译：

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C4A拷贝数与自身免疫性疾病相关

补体成分基因 C4A 的低拷贝数与自身抗体的存在和全身性自身免疫性炎症疾病的发生有关。