Figure 1From: Expression of matrix metalloproteinases 1, 3, and 9 in degenerated long head biceps tendon in the presence of rotator cuff tears: an immunohistological study (a-c): Mean values for percentage of MMP 1 expression (a), MMP 3 expression (b) and MMP 9 expression (c) for the different groups. Asterisks indicate statistical significant differences.Back to article page