[1] Hiroshima Univ Hosp, Dept Resp Med, Hiroshima, Japan
[2] Niigata Canc Ctr Hosp, Dept Internal Med, Niigata, Japan
[3] Natl Hosp Org, Oita Med Ctr, Dept Surg, Oita, Japan
[4] Kansai Elect Power Hosp, Dept Med Oncol, Osaka, Japan
[5] Natl Hosp Org Kyushu Canc Ctr, Dept Thorac Oncol, Fukuoka, Japan
[6] Hiroshima City Hiroshima Citizens Hosp, Dept Resp Med, Hiroshima, Japan
[7] Aichi Canc Ctr Hosp, Dept Thorac Oncol, Nagoya, Aichi, Japan
[8] Kagawa Univ, Dept Internal Med, Div Hematol Rheumatol & Resp Med, Fac Med, Takamatsu, Kagawa, Japan
[9] Itami City Hosp, Dept Resp Med, Itami, Hyogo, Japan
[10] Kumamoto Univ Hosp, Dept Resp Med, Kumamoto, Japan
[11] Kurume Univ, Div Respirol Neurol & Rheumatol, Dept Internal Med, Sch Med, Kurume, Fukuoka, Japan
[12] Kumamoto Reg Med Ctr, Dept Resp Med, Kumamoto, Japan
[13] Oita Univ, Fac Med, Dept Med Oncol & Hematol, Oita, Japan
[14] Saka Gen Hosp, Dept Resp Med, Shiogama, Japan
[15] Nagoya City Univ, Dept Resp Med Allergy & Clin Immunol, Grad Sch Med Sci, Nagoya, Aichi, Japan
[16] Sagamihara Kyodo Hosp, Dept Gen Thorac Surg, Sagamihara, Kanagawa, Japan
[17] Juntendo Univ, Fac Med, Dept Resp Med, Tokyo, Japan
[18] Wakayama Med Univ, Dept Internal Med 3, Wakayama, Japan
[19] Kindai Univ, Fac Med, Dept Med Oncol, Higashiosaka, Osaka, Japan