Corresponding author:
Masashi Inoue, MD
Department of Surgery, National Hospital Organization
Higashihiroshima Medical Center
513 Jike, Saijo-cho, Higashihiroshima, Hiroshima, 739-0041, Japan
Tel: +81-824-22-2176; FAX: +81-824-22-4675
Email: inoue.masashi.uv@mail.hosp.go.jp