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| Methods | RCT |
| Participants | 64 patients undergoing radical resection of gastric antral carcinoma |
| Interventions |
Intervention: epidural anaesthesia/analgesia Control: no epidural General anaesthesia for all participants |
| Outcomes | Tumour necrosis factor α Interleukins 6 and 8 T‐lymphocyte subsets Natural killer cells |
| Notes |
ASA: American Society of Anesthesiologists physical status; mcg/kg: micrograms per kilogram of body weight; N: number; RCT: randomized controlled trial
