^○Noriyuki Miyama, Hideki Sakashita, Nobuko Yamamoto, Kanako Takai, Hiroyoshi Komai (Kansai Medical University Medical Center, Department of Vascular Surgery)

^○Takashi Shibuya¹, Ken-ichi Watanabe^1,2, Takashi Nakamura³, Hironobu Fujimura⁴, Takashi shinntani⁵, Keisuke Miyake¹, Takayosi Ueno¹, Kouichi Toda¹, Touru Kuratani¹, Yoshiki Sawa¹ (1.Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2.Department of Cardiovascular Surgery, Suita Tokusyuukai Hospital, 3.Department of vascular Surgery, Osaka Rousai Hospital, 4.Department of Cardiovascular Surgery, Toyonaka City Hospital, 5.Department of Cardiovascular Surgery, Nihonnseimei Hospital)

^○Yoshihiko Tsuji, Ikuro Kitano (Department of Surgery, Shinsuma General Hosptial)

^○Taku Kokubo, Taishi Tamura, Tadahiro Sasahima (Vascular Center, Edogawa Hospital, Tokyo, Japan)

^○Atsuhiro Koya, Daiki Uchida, Shinsuke Kikuchi, Ai Tochikubo, Nobuyoshi Azuma (Asahikawa Medical University, Asahikawa city, Japan)

^○Mitsuru Matsukura, Kunihiro Shigematsu, Nobuto Origuchi, Yukio Obitsu (International University Of Health And Welfare Mita Hospital)

^○Daisuke Akagi, Youku Nemoto, Taste Nakazawa (Tokyo Metropolitan Geriatric Medical Center)

^○Katsuyuki Hoshina (University of Tokyo)

^○Akio Kodama, Yuuta Ikeda, Yohei Kawai, Takayuki Fujii, Naohiro Akita, Takuya Tsuruoka, Masashi Sakakibara, Katsuaki Meshii, Noriko Takahashi, Masayuki Sugimoto, Kiyoaki Niimi, Hiroshi Banno, Kimihiro Komori (Division of Vascular Surgery, Department of Surgery, Nagoya University Graduate School of Medicine,)