[1] Kanagawa Canc Ctr, Dept Thorac Oncol, Yokohama, Kanagawa 2410815, Japan
[2] Kanagawa Canc Ctr, Mol Pathol & Genet Div, Yokohama, Kanagawa 2410815, Japan
[3] Kanagawa Canc Ctr, Dept Pathol, Yokohama, Kanagawa 2410815, Japan
[4] Yokohama City Univ, Grad Sch Med, Dept Pulmonol, Yokohama, Kanagawa 232, Japan