Research Article
The Expression of Osteopontin and Wnt5a in Articular Cartilage of Patients with Knee Osteoarthritis and Its Correlation with Disease Severity
Figure 4
Average grey value levels of OPN and Wnt5a in OA and control group. means , OPN value versus normal group; # means , Wnt5a value versus normal group; OPN: osteopontin.