Hopewell, S., Keene, D. J., Marian, I. R., Dritsaki, M., Heine, P., Cureton, L., Dutton, S. J., Dakin, H., Carr, A., Hamilton, W., Hansen, Z., Jaggi, A., Littlewood, C., Barker, K. L., Gray, A., Lamb, S. E., , , Bateman, M., Hallett, A., Thompson, H., Willmore, E., McCann, L., Price, J., Smith, N., Kardamilas, H., Hurst, M., Andrews, T., Wells, L., De Matas, C., Jaykumar, A., Grove, S., Birch, C., Bury, J., Blacknall, J., Jessop, S., Boucher, L., Sandbach, R., Lalande, S., Dickson, G., Larkin, T., & Cummings, C. (2021). progressive exercise compared with best practice advice, with or without corticosteroid injection, for the treatment of patients with rotator cuff disorders (GRASP): a multicentre, pragmatic, 2 × 2 factorial, randomised controlled trial. Lancet, 398(10298), 416–428. http://access.bl.uk/ark:/81055/vdc_100137795651.0x000044