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| Methods | Method of randomisation not reported. | |
| Participants | 40 women with Bishop score of 6 or less. | |
| Interventions | Extra amniotic infusion (control) up to a maximum of 150 ug/hour versus intravenous prostaglandin E2 up to a maximum of 1 ug/minute. Amniotomy was performed when possible. | |
| Outcomes | Caesarean section data and instrumental delivery data extractable. | |
| Notes | ||
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Allocation concealment? | Unclear risk | D ‐ Not used |
