1. Hyaluronic acid injections for knee osteoarthritis. Systematic review of the literature;Aggarwal;Canadian Family Physician,2004
2. Osteoarthrosis of the knee: A radiographic investigation;Ahlbäck;Acta Radiologica [Diagn] (Stockh),1968
3. Responsiveness of the WOMAC osteoarthritis index as compared with the SF-36 in patients with osteoarthritis of the legs undergoing a comprehensive rehabilitation intervention;Angst;Annals of the Rheumatic Diseases,2001
4. Arthritis Research Campaign (2004). Arthritis. The Big Picture. Statistics from the ARC Epidemiology Unit. http://www.arc.org.uk/arthinfo/documents/BigPic.pdf [Accessed 9 May 2007].
5. A comparison of two different intra-articular hyaluronan drugs and physical therapy in the management of knee osteoarthritis;Atamaz;Rheumatology International,2006