Table 3. Number of Patients according to Follow-up Period in Each Group.
| Balloon Group (n = 33) | Stent Group (n = 12) | |
|---|---|---|
| < 6 months | 1 | 2 |
| 6–12 months | 5 | 4 |
| 13–18 months | 4 | 1 |
| 19–24 months | 6 | 3 |
| 25–36 months | 7 | 1 |
| > 36 months | 10 | 1 |
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