一个懂行的朋友说PCR国际标准是转35圈，而国内是40圈，检出病毒量极低的阳性，假阳性。

来源: purple123 于 2023-01-03 19:15:54 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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