Table 2.
The group designs for the effect of sequential delivery systems on alkaline phosphatase (ALP) specific activity of W-20-17 cells
| A | B | C | D | |
|---|---|---|---|---|
| Gelatin MSs | N/A | N/A | N/A | IGF-1 |
| Chitosan gel | N/A | BMP-2 | BMP-2/IGF-1 | BMP-2 |
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