Prospective Study
Copyright ©The Author(s) 2021.
World J Clin Cases. Jun 26, 2021; 9(18): 4681-4689
Published online Jun 26, 2021. doi: 10.12998/wjcc.v9.i18.4681
Table 4 Self-evaluation status of subjects

Day 20
Day 40
Day 60
Day 80
5 yr
Excellent improvement00110
Significant improvement24570
Some improvement91112113
No change1210764
Worse00002
Total252525259