https://blog.wongcw.com/2021/04/11/%e7%a0%94%e7%a9%b6%ef%bc%9a%e6%88%b4%e5%8f%a3%e7%bd%a9%e5%92%8c%e4%bf%9d%e6%8c%81%e9%80%9a%e9%a2%a8%e6%af%94%e4%bf%9d%e6%8c%81%e7%a4%be%e4%ba%a4%e8%b7%9d%e9%9b%a2%e6%9b%b4%e8%83%bd%e9%98%bb%e6%ad%a2/
研究:戴口罩和保持通風比保持社交距離更能阻止新冠病毒傳播