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Effect of chronic intermittent hypobaric hypoxia (CIHH) pre-treatment on incidence rate in collagen-induced arthritis rat
| Group | Number of cases | Number of incidence | Incidence rate (%) |
|---|---|---|---|
| CIA | 20 | 14 | 70 |
| CIHH+CIA | 20 | 4 | 20* |
x2=10.101, *P < 0.05 vs CIA group.
