https://apps.who.int/iris/bitstream/handle/10665/340339/WHO-2019-nCoV-BloodSupply-2021.1-fre.pdf 2021 Switzerland coronavirus infections pneumonia, viral public health guidelines orientation, nos orientation convalescence, nos Collection pandemics convalescence blood plasma COVID-19
--- https://apps.who.int/iris/bitstream/handle/10665/354395/WHO-2019-nCoV-Sci-Brief-Rehabilitation-2021.1-fre.pdf 2021 Switzerland COVID-19 french abstract health services needs and demand rehabilitation therapy, nos rehabilitation needs convalescence, nos persons convalescence
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