塞林博士的Substack文章： COVID-19 的实验室起源及其持续掩盖、共产中国生物战计划的结构以及共产中国对美国病毒实验室的大规模渗透。

The Laboratory Origin of COVID-19 and the Ongoing Cover-up of its Origin, the Structure of Communist China’s Biowarfare Program and Communist China’s Massive Infiltration of U.S. Virus Laboratories. https://lawrencesellin.substack.com/p/the-laboratory-origin-of-covid-19?utm_source=url