For example, the Flashes and alerts module on the Overview topic contains information such as security vulnerabilities, critical patches, and solutions for known problems.

比如，Overview主题的Flashes and alerts模块会包含这样的信息：安全漏洞、重要的补丁以及针对未知问题的解决方案。

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When Dr. Lillehei was putting these patches in the children to close the ventricaluar septal defect, there's a critical nerve that runs right along that hole, and it's invisible.

CNN: Pacemaker pioneer now lives with device