[Retracted] Effect of Fas and Bcl-2 DNA Damages Response Expression in Stem Cells on Apoptosis of Nucleus Pulposus of Intervertebral Disc

Table 4

Fisher’s exact test for the difference between the positive rate of Fas and Bcl-2 proteins expressed in the lumbar disc nucleus pulposus cells.

	Number of cases
	Fas-Bcl-2 (%)	≥18	<18	Total
Experimental group		11	9	20
Control group		0	6	6
Total		11	15	26
-value	0.0237