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Grouping of experimental animals.
| Experimental group (PLGA/SA scaffold group) | Blank group (no stent implantation group) | |
|---|---|---|
| 3 days after surgery | 10 | 10 |
| 7 days after surgery | 10 | 10 |
| 14 days after surgery | 10 | 10 |
| 21 days after surgery | 10 | 10 |
| 2 to 8 days after surgery | 10 | 10 |
| 3 to 5 days after surgery | 10 | 10 |
