Table 2.

Collagen fibril diameter and distance between fibrils regarding the groups which were measured by TEM.

Groups	Collagen diameter in nm, median (range)	Distance between collagens in nm, median (range)
N (No intervention [C + S])	24,6 (14.1–49.4)	25.2 (9.1–61.6)
Z	23.7 (16.7–35.0)	24.3 (11.5–44.6)
X	23.1 (15.6–34.9)	27.7 (16.2–50.4)
ZX	23.2 (16.4–32.3)	18.3 (9.1–40.9)
TEM, transmission electron microscope; N, no intervention (C: control and S: sham); Group C, control; Group S, sham; Group Z, ozonated only; Group X, cross-linked only; Group ZX, ozonated and cross-linked