?:authorAffiliation
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[\'Department of Pediatrics, University of Eastern Finland, Institute of Clinical Medicine, Kuopio, Finland.\', \'Department of Pediatrics, Mikkeli Central Hospital, Mikkeli, Finland.\', \'Faculty of Social Sciences, Department of Epidemiology, Tampere University, Tampere, Finland.\', \'Department of Infectious Diseases and Vaccinations, Finnish Institute of Health and Welfare, Tampere, Finland.\', \'Department of Pediatrics, Kuopio University Hospital, Kuopio, Finland.\', \'PEDEGO Research Unit, University of Oulu, Oulu, Finland.\']
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