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Background and aim
The analgesic effect on labour pain of either spinal or epidural sufentanil or fentanyl was tested in a total of 80 primiparous parturients at an early phase of the delivery. The aim of the study was to compare the level of analgesia achieved within 20 minutes.
Methods
The parturients were randomly assigned to groups receiving either spinal sufentanil (5 µg), epidural sufentanil...
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