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Autrice : Huang Wei. Librarian, research associate at Shanghai Library. Date : 12 février 2020Revue en ligne :  Sixth Tone. "There are five tones in Mandarin Chinese. When it comes to coverage of China, Sixth Tone believes there is room for other voices that go beyond buzzwords and headlines to tell the  uncommon stories of common people."The country’s faith in masks is partly a product of early 20th century public health campaigns. URL : https://www.sixthtone.com/news/1005177/a-brief-history-of-face-masks-in-china