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The Sample Size and Its Distribution Over 3 Time Points (Surgeries), Surgeons, Scrub Tech, and Operating Room.
| Sample Number | Group | Surgery | Operating Room | Scrub Tech | Surgeon | Screw Type |
|---|---|---|---|---|---|---|
| 1 | 1 | A | A | A | A | 5.5 × 50 mm |
| 1 | 2 | 5.5 × 50 mm | ||||
| 2 | 1 | 7.5 × 60 mm | ||||
| 2 | 2 | 7.5 × 60 mm | ||||
| 3 | 1 | B | B | B | B | 7.5 × 60 mm |
| 3 | 2 | 7.5 × 60 mm | ||||
| 4 | 1 | C | C | C | C | 7.5 × 60 mm |
| 4 | 2 | 7.5 × 60 mm | ||||
| 5 | 1 | 7.5 × 60 mm | ||||
| 5 | 2 | 7.5 × 60 mm |
