1. Williams, S. N., Wolford, M. L. & Bercovitz, A. Hospitalization for Total Knee Replacement Among Inpatients Aged 45 and Over: United States, 2000-2010 Key findings. (2000).
2. Wolford, M. L., Palso, K. & Bercovitz, A. Hospitalization for Total Hip Replacement Among Inpatients Aged 45 and Over: United States, 2000-2010 Key findings. (2000).
3. Canadian Joint Replacement Registry Annual Report. (2018).
4. Australian National joint replacement registry annual report. (2018).
5. Hooper, G., J-J Lee, A., Rothwell, A. & Frampton, C. Current trends and projections in the utilisation rates of hip and knee replacement in New Zealand from 2001 to 2026. Journal of the New Zealand Medical Association NZMJ 29, (2014).