?:authorAffiliation
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[\'Department of Medicine, Division of Geriatric Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.\', \'Canadian Center for Vaccinology, Halifax, Nova Scotia, Canada.\', \'Division of Geriatrics, Duke University Medical Center and GRECC, Durham Veterans Affairs Medical Center, Durham, North Carolina, USA.\', \'Department of Family Medicine, Dalhousie University, Halifax, Canada.\', \'Health Sciences North Research Institute, Sudbury, Ontario, Canada.\']
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