"Hydroxychloroquine sulfate is effective in preventing and treating COVID-19" - Miles Guo

On October 7, 2020, Mr. Guo Wengui revealed that hydroxychloroquine sulfate is effective in preventing and treating COVID-19.
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On October 7, 2020, Mr. Guo Wengui revealed that hydroxychloroquine sulfate is effective in preventing and treating COVID-19.
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