[1] Nagasaki Univ, Dept Resp Med, Grad Sch Biomed Sci, Nagasaki, Japan
[2] Natl Canc Ctr Hosp East, Kashiwa, Chiba, Japan
[3] Ureshino Med Ctr, Dept Resp Med, Ureshino, Japan
[4] Sasebo City Gen Hosp, Dept Resp Med, Sasebo, Japan
[5] Japanese Red Cross Nagasaki Genbaku Hosp, Dept Resp Med, Nagasaki, Japan
[6] Nagasaki Univ Hosp, Dept Resp Med, Nagasaki, Japan