?:authorAffiliation
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[\'Department of Gastroenterology, PLA Strategic Support Force Characteristic Medical Center, Beijing, China.\', \'State Environmental Protection Key Laboratory of Environmental Sense Organ Stress and Health, Beijing, China.\', \'Prevention and Control Group of SARS-CoV-2, PLA Strategic Support Force Characteristic Medical Center, Beijing, China.\', \'Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.\']
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