?:authorAffiliation
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[\'Department of Medicine, Teikyo University School of Medicine, Japan.\', \'Department of Gastroenterology, Teikyo University Mizonokuchi Hospital, Japan.\', \'The Fourth Department of Internal Medicine, Teikyo University Mizonokuchi Hospital, Japan.\', \'Department of Infection Control and Prevention, Teikyo University Hospital, Japan.\', \'Department of Internal Medicine, Teikyo University Chiba Medical Center, Japan.\']
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