?:authorAffiliation
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[\'Department of Respiratory Medicine, Kimitsu Chuo Hospital, Kisarazu, Chiba, Japan.\', \'Department of Respirology, Graduate School of Medicine, Chiba University, Chiba City, Chiba, Japan.\', \'Health Professional Development Center, Chiba University Hospital, Chiba City, Chiba, Japan.\', \'Department of Infection Prevention and Control, Kimitsu Chuo Hospital, Kisarazu, Chiba, Japan.\']
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