Sho Fujiwara1,2, Yuki Sekine1,3. 1. Department of Surgery, Iwate Prefectural Chubu Hospital, Kitakami, Iwate, Japan. 2. Department of Molecular Pathology, Tohoku University School of Medicine, Sendai, Japan. 3. Department of Vascular Surgery, Iwate Prefectural Chubu Hospital, Kitakami, Iwate, Japan.