[1] Tokushima Univ, Sch Med, Thorac Endocrine Surg & Oncol, Tokushima, Japan
[2] Univ Tokushima, Grad Sch, Oncol Med Serv Inst Hlth Biosci, Tokushima, Japan
[3] Univ Tokushima, Grad Sch, Program Biomed Informat Sci, Tokushima, Japan
[4] Univ Tokushima, Grad Sch, Dept Med Imaging, Tokushima, Japan