Correspondence to Dr Annette H M van der Helm-van Mil, Department of Rheumatology, Leiden University Medical Center, P.O. Box 9600, Leiden 2300 RC, The Netherlands; AvdHelm{at}lumc.nl Background ...

Objective To assess the efficacy/safety of tofacitinib in adult patients with active ankylosing spondylitis (AS). Methods This phase III, randomised, double-blind, placebo-controlled study enrolled ...

Correspondence to Dr Björn Tampe, Department of Nephrology and Rheumatology, University Medical Center Göttingen, Göttingen 37075, Germany; bjoern.tampe{at}med.uni-goettingen.de In summary, this ...

Objective To develop and validate revised classification criteria for granulomatosis with polyangiitis (GPA). Methods Patients with vasculitis or comparator diseases were recruited into an ...

4 Hospital de Santa Maria, Centro Hospitalar Universitario Lisboa Norte, Universidade de Lisboa, and Centro Académico deMedicina de Lisboa, Lisbon, Portugal 5 Oxford NIHR Biomedical Research Centre ...