Figure 1From: Individual patient data meta-analysis of trials investigating the effectiveness of intra-articular glucocorticoid injections in patients with knee or hip osteoarthritis: an OA Trial Bank protocol for a systematic review Flowchart of the OA Trial Bank organization. EULAR, European League Against Rheumatism; OARSI, OsteoArthritis Research Society International; PPI, patient and public involvement.Back to article page