Fig. 1From: Tocilizumab as monotherapy or combination therapy for treating active rheumatoid arthritis: a meta-analysis of efficacy and safety reported in randomized controlled trialsPreferred Reporting Items for Systematic Reviews and Meta-analyses flow diagram of studies included in the review. ACR American College of Rheumatology, DAS28 Disease Activity Score in 28 joints, AE adverse event, SAE serious adverse event, TCZ tocilizumab, csDMARDs disease-modifying anti-rheumatic drugsBack to article page