Masanori Nakayama, Yasuo Niki*, Toshiki Kawasaki, Yuki Takeda, Keisuke Horiuchi, Aya Sasaki, Yasunori Okada, Kazuo Umezawa, Hiroyasu Ikegami, Yoshiaki Toyama and Takeshi Miyamoto
* Corresponding author: Yasuo Niki y.niki@lib.bekkoame.ne.jp
Arthritis Research & Therapy 2012, 14:R120 doi:10.1186/ar3850