?:authorAffiliation
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[\'COVID-19 study group, The First Hospital of Lanzhou University, Lanzhou 730000, China.\', \'COVID-19 study group, Ankang Central Hospital, Ankang 725000, China.\', \'COVID-19 study group, Lishui Central Hospital, Lishui 323000, China.\', \'COVID-19 study group, The Affiliated Third Hospital of Jiangsu University, Zhenjiang 212021, China.\', \'Department of Respiratory and Critical Care Medicine, The First Hospital of Lanzhou University, Lanzhou 730000, China.\', \'COVID-19 study group, The People\'s Hospital of Baoding, Baoding 071000, China.\', \'COVID-19 study group, The People\'s Hospital of LinXia Hui Prefecture, Linxia 731100, China.\', \'COVID-19 study group, The Sixth People\'s Hospital of Shenyang, Shenyang 110006, China.\', \'COVID-19 study group, The Third People\'s Hospital of Shenzhen, Shenzhen 518100, China.\']
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