?:authorAffiliation
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[\'Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.\', \'Infection Control Office, Seoul National University Hospital, Seoul, Korea.\', \'Public Healthcare Center, Seoul National University Hospital, Seoul, Korea.\', \'Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea.\', \'Department of Family Medicine, Seoul National University College of Medicine, Seoul, Korea.\']
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