Connected Milestones
| CDC | May stand alone | 12 months |
|---|---|---|
| HC | Stands momentarily without support | 12 months |
| PIR | Stands for a few seconds | 11 months |
| CDC | May stand alone | 12 months |
|---|---|---|
| HC | Stands momentarily without support | 12 months |
| PIR | Stands for a few seconds | 11 months |