*PC: regenerated cartilage of the deep-hole area made by the drill.
SC: regenerated cartilage of the surface area of
NC: normal cartilage
Figure 15: HPLC Analysis of the regenerated cartilage and normal cartilage. (U.V. absorbance detector Waters 2487 dual lamda, 220 nm, flow solution 0.25M NaCl/5mM acetic acid, flow rate: 0.5ml/min).