Richardson, G; Hawkins, N; McCarthy, CJ; Mills, PM; Pullen, R; Roberts, C; Silman, A; Oldham, JA; (2006) Cost-effectiveness of a supplementary class-based exercise program in the treatment of knee osteoarthritis. International journal of technology assessment in health care, 22 (1). pp. 84-9. ISSN 0266-4623 https://researchonline.lshtm.ac.uk/id/eprint/2534599 Full text not available from this repository.