Findings from the patch augmented rotator cuff surgery (PARCS) feasibility study by Cook, JA, Baldwin, M, Cooper, C, Navraj, NS, Crocker, JC, Glaze, M, Greenall, G, Rangan, A, Kottam, L, Rees, JL, Farrar-Hockley, D, Merritt, N, Hopewell, S, Beard, D, Thomas, M, Dritsaki, M, Carr, AJ