Holden, M., Burke, D., Runhaar, J., van Der Windt, D., Riley, R., Dziedzic, K., …Foster, N. (2018). Subgrouping and targeted exercise programmes for knee and hip osteoarthritis (steer OA): an individual participant data meta-analysis initiative. Osteoarthritis and Cartilage, 26, S326. https://doi.org/10.1016/j.joca.2018.02.649