[Retracted] Pravastatin Reduces Matrix Metalloproteinases Expression and Promotes Cholesterol Efflux in Osteoarthritis Chondrocytes

Table 1

Gradient elution conditions.

Time (min)	Mobile phase A (%)	Mobile phase B (%)
0	98	2
1	98	2
13	10	90
16	10	90
16.1	98	2
20	Stop