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Comparison of postoperative outcomes (first 50 patients vs last 40 patients)
| Operative time (min) | Open conversion | Transfusion requirement | Time to first flatus (d) | Hospital stay (d) | Complication (patients) | |
| First 50 patients | 251.3±47.3 | 1 | 3 | 3.1±0.9 | 7.6±1.4 | 7 |
| Last 40 patients | 197.0±27.7 | 1 | 2 | 3.1±0.6 | 7.4±1.0 | 6 |
P<0.0001
