Authors: Joanne M Jordan; Charles G Helmick; Jordan B Renner; Gheorghe Luta; Anca D Dragomir; Janice Woodard; Fang Fang; Todd A Schwartz; Amanda E Nelson; Lauren M Abbate; Leigh F Callahan; William D Kalsbeek; Marc C Hochberg Journal: J Rheumatol Date: 2009-03-13 Impact factor: 4.666
Authors: Emalie J Hurkmans; V de Gucht; S Maes; Andreas J Peeters; H Karel Ronday; Thea P M Vliet Vlieland Journal: Clin Rheumatol Date: 2011-09-13 Impact factor: 2.980