Authors: R H Straub; C Weidler; B Demmel; M Herrmann; F Kees; M Schmidt; J Schölmerich; J Schedel Journal: Ann Rheum Dis Date: 2004-08 Impact factor: 19.103
Authors: C Gordon; D J Wallace; S Shinada; K C Kalunian; L Forbess; G D Braunstein; M H Weisman Journal: Rheumatology (Oxford) Date: 2008-01-31 Impact factor: 7.580