Takeshi Nishi*, Yasunari Kawabata, Youko Hari, Hiroshi Imaoka, Noriyoshi Ishikawa, Seiji Yano, Riruke Maruyama and Yoshitsugu Tajima
* Corresponding author: Takeshi Nishi nishiken@med.shimane-u.ac.jp
World Journal of Surgical Oncology 2012, 10:153 doi:10.1186/1477-7819-10-153