[1] Osaka Police Hosp, Dept Resp Med, Tennouji Ku, Osaka 5430035, Japan
[2] Kinki Cent Hosp, Dept Resp Med, Itami, Hyogo, Japan
[3] Osaka Univ, Grad Sch Med, Dept Resp Allergy & Rheumat Dis, Osaka, Japan
[4] Toneyama Natl Hosp, Natl Hosp Org, Dept Resp Med, Osaka, Japan
[5] Gen Med Ctr Osaka, Dept Internal Med, Osaka, Japan
[6] Osaka Prefectural Med Ctr Resp & Allerg Dis, Dept Thorac Malignancy, Osaka, Japan
[7] Osaka Med Ctr Canc & Cardiovasc Dis, Dept Pulm Oncol, Osaka, Japan