Brosseau, L., Wells, G. A., Kenny, G. P., Reid, R., Maetzel, A., Tugwell, P., Huijbregts, M., McCullough, C., De Angelis, G., Chen, L. The implementation of a community-based aerobic walking program for mild to moderate knee osteoarthritis: a knowledge translation randomized controlled trial: part II: clinical outcomes. BMC Public Health 2012; 0: 1073