1) Department of Surgery, Institute of Gastroenterology, Tokyo Women’s Medical University, Tokyo, Japan
2) Ushiku Aiwa Hospital, Ushiku, Japan
3) Department of Mammary Endocrine Surgery, Tokyo Women’s Medical University, Tokyo, Japan

Yoshiko Bamba¹⁾, Michio Itabashi¹⁾, Yuji Inoue¹⁾, Shimpei Ogawa¹⁾, Takeshi Ohki¹⁾, Natsuki Matsuo¹⁾, Kurodo Koshino¹⁾, Ryosuke Nakagawa¹⁾, Sayumi Nakao¹⁾, Fumi Maeda¹⁾, Kimitaka Tani¹⁾, Kei Ohira¹⁾, Shingo Kameoka²⁾, Takahiro Okamoto³⁾, Masakazu Yamamoto¹⁾