Role of Secreted Frizzled-Related Protein 1 and Tumor Necrosis Factor-α (TNF-α) in Bone Loss of Patients with Rheumatoid Arthritis

Figure 1

Scatter plot of correlation between TNF-α and P1NP (a); scatter plot of correlation between SFRP-1 and P1NP (b).

(a)

(b)