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Masakazu Ichinose
Department of Respiratory Medicine, Tohoku University Graduate School of Medicine
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Asuka Nagai
Department of Respiratory Medicine, Tokai University Tokyo Hospital
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Toshiaki Kikuchi
Department of Respiratory Medicine and Infectious Diseases, Niigata University Graduate School of Medical and Dental Sciences
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Yukihiko Sugiyama
Division of Pulmonary Medicine, Jichi Medical University