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| Methods | RCT | |
| Participants | GI surgery | |
| Interventions | NGT | |
| Outcomes | vomit Chest compl wound inf anast.leak UTI length of stay | |
| Notes | 11 | |
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Allocation concealment? | Unclear risk | B ‐ Unclear |
