[1] Shimane Univ, Div Med Oncol & Resp Med, Dept Internal Med, Izumo, Shimane, Japan
[2] Shimane Univ, Div Med Oncol & Resp Med, Izumo, Shimane, Japan
[3] Univ Ryukyus, Fac Med, Lab Biometab Chem, Sch Hlth Sci, Nishihara, Okinawa, Japan
[4] Shimane Univ, Fac Med, Dept Immunol, Izumo, Shimane, Japan