| Study | Reason for exclusion |
|---|---|
| Belavy 2013 | RCT, only examined epidural analgesia |
| Eberhart 2008 | NRS, 'prospective study' |
| Feng 2008 | Phase III multi‐centre RCT, investigated early enteral feeding only |
| Gerardi 2008 | NRS, prospective FT group with retrospective control group |
| Janda 2014 | RCT, investigated early oral intake only |
| Marx 2006 | NRS, prospective FT group with retrospective control group |
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