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All used tandem and ring configurations, and their respective number of available dwell positions.
| Model | Applicator configuration: r(ing diameter) [mm] i(ntrauterine length) [mm] | n | Total number of dwell positions |
|---|---|---|---|
| Vienna | r26i60 | 25 | 60 |
| Vienna | r30i60 | 24 | 64 |
| Vienna | r30i40 | 16 | 64 |
| Vienna | r34i60 | 16 | 69 |
| Vienna | r26i40 | 9 | 50 |
| Venezia | r26i60 | 3 | 60 |
| Venezia | r30i50 | 2 | 64 |
| Venezia | r30i60 | 2 | 64 |
| Venezia | r26i50 | 1 | 60 |
