Ayub, S., Kaur, J., Espahbodi, S., Hall, M., Doherty, M., & Zhang, W. (2021). Efficacy and safety of multiple intra-articular corticosteroid injections for osteoarthritis—a systematic review and meta-analysis of randomized controlled trials and observational studies. Rheumatology, 60(4), 1629–1639. https://doi.org/10.1093/rheumatology/keaa808