Patient-directed self-management of pain (PaDSMaP) compared to treatment as usual following total knee replacement; a randomised controlled trial oleh Katherine H. O. Deane, Richard Gray, Paula Balls, Clare Darrah, Louise Swift, Alan B. Clark, Garry R. Barton, Sophie Morris, Sue Butters, Angela Bullough, Helen Flaherty, Barbara Talbot, Mark Sanders, Simon T. Donell