Authors: Claudia Metelmann; Katrin Schulz; Rotraud Geldschläger-Canda; Sebastian Plötz; Werner Handrick Journal: Wien Klin Wochenschr Date: 2010-06-23 Impact factor: 1.704
Authors: J B Galloway; K L Hyrich; L K Mercer; W G Dixon; A P Ustianowski; M Helbert; K D Watson; M Lunt; D P M Symmons Journal: Ann Rheum Dis Date: 2011-07-21 Impact factor: 19.103