1 Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
2 Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan. Electronic address: h-murata@nagasaki-u.ac.jp.
3 Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Department of Macroscopic Anatomy, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
4 Infection Control and Education Center, Nagasaki University Hospital, Nagasaki, Japan; Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan.
5 Infection Control and Education Center, Nagasaki University Hospital, Nagasaki, Japan.
6 Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
7 Department of Cardiovascular Surgery, Nagasaki University Hospital, Nagasaki, Japan.