1 Department of Thoracic Oncology, National Kyushu Cancer Center, 3-1-1 Notame, Minami-ku, Fukuoka 811-1395, Japan.
2 Clinical Research Institute, National Kyushu Cancer Center, Fukuoka, Japan.
3 Department of Thoracic Oncology, National Kyushu Cancer Center, 3-1-1 Notame, Minami-ku, Fukuoka 811-1395, Japan. Electronic address: yichinos@nk-cc.go.jp.