?:authorAffiliation
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[\'Cantonal Hospital St Gallen, Division of Infectious Diseases and Hospital Epidemiology, St Gallen, Switzerland.\', \'Children\'s Hospital of Eastern Switzerland, Department of Infectious Diseases and Hospital Epidemiology, St Gallen, Switzerland.\', \'Clinical Trials Unit, Cantonal Hospital of St Gallen, St Gallen, Switzerland.\', \'Epitrack, Recife, Brazil.\', \'Department of Economics, University of Zurich, Zurich, Switzerland.\', \'Sinai Health System, Toronto, Ontario, Canada.\', \'Federal Office of Public Health, Berne, Switzerland.\', \'Labormedizinisches Zentrum Dr. Risch, Buchs, Switzerland.\']
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