?:authorAffiliation
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[\'1Department of Infectious, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.\', \'2Department of Endoscopy, University of the Ryukyus Hospital, Okinawa, Japan.\', \'3Infection Control Center, University of the Ryukyus Hospital, Okinawa, Japan.\']
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