Wen Yumei (2020) cited in " Expert believes China's control measures on Wuhan virus will take effect in 20 days https://www.thestar.com.my/news/regional/2020/01/27/expert-believes-china039s-control-measures-on-wuhan-virus-will-take-effect-in-20-days" on The Star Online, 27 January 2020.
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