1 Department of Radiology and Radiation Oncology, Niigata University Graduate School of Medical and Dental Sciences (M.Y., M.T., T.Y., Y.G., H.I.).
2 Department of Respiratory Medicine and Infectious Diseases, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuouku, Niigata, 951-8510, Japan (S.W., N.Y., A.O., T.T., K.N., Y.S., R.K., T.K.). Electronic address: satoshi7@med.niigata-u.ac.jp.
3 Department of Respiratory Medicine and Infectious Diseases, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuouku, Niigata, 951-8510, Japan (S.W., N.Y., A.O., T.T., K.N., Y.S., R.K., T.K.).