1. A double-blind randomized controlled trial comparing alternate forms of high molecular weight hyaluronan for the treatment of osteoarthritis of the knee 
M. Kirchner, Dr Med., Dr D. Marshall, R.N., M.S., Ph.D. 
Osteoarthritis and Cartilage 
Volume 14, Issue 2, Pages (February 2006)
DOI: /j.joca
Copyright © 2005 OsteoArthritis Research Society International Terms and Conditions

2. Fig. 1 Flow chart of patient disposition.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2005 OsteoArthritis Research Society International Terms and Conditions

3. Fig. 2
Change from baseline in mean WOMAC Index pain subscale VAS scores throughout the study period (average of the five WOMAC pain scale questions). Error bars represent standard error of the mean. VAS=100mm VAS.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2005 OsteoArthritis Research Society International Terms and Conditions

4. Fig. 3
Change from baseline in mean WOMAC Index VAS scores (pain, stiffness, and function scales). Error bars represent standard error of the mean. VAS=100mm VAS.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2005 OsteoArthritis Research Society International Terms and Conditions