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*Naoyoshi Yamamoto
Department of Thoracic Surgery, National Hospital Organization, Chiba-East, National Hospital
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Hisami Yamakawa
Department of Thoracic Surgery, National Hospital Organization, Chiba-East, National Hospital
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Michio Fujino
Department of Thoracic Surgery, National Hospital Organization, Chiba-East, National Hospital
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Yukiko Matsui
Department of Thoracic Surgery, National Hospital Organization, Chiba-East, National Hospital