Saeki Takako, Ito Tomoyuki, Youkou Akira, Ishiguro Hajime, Sato Naoko, Yamazaki Hajime, Koike Tadashi, Kourakata Hiroyo, Ferrari Silvia, Scheiflinger Friedrich, Narita Ichiei
Department of Internal Medicine, Nagaoka Red Cross Hospital,2-297-1 Senshu, Nagaoka, Niigata, Japan.
Arthritis Care Res (Hoboken). 2011 Aug;63(8):1209-12. doi: 10.1002/acr.20484.