1 Department of Surgery, Shiga General Hospital, 5-4-30 Moriyama, Moriyama City, Shiga Prefecture, 524-8524, Japan. Electronic address: horitomo55office@yahoo.co.jp.
2 Department of Surgery, Shiga General Hospital, 5-4-30 Moriyama, Moriyama City, Shiga Prefecture, 524-8524, Japan.