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Pregnancy
Labor, Obstetric
Analgesia, Obstetrical
Obstetrical Anesthesia
Analgesia, Epidural
Spinal Anesthesia
Injections, Spinal
Anesthesia, Epidural
Double-Blind Method
Injections, Intravenous
Sufentanil
Bupivacaine
Local Anesthetics
Analgesics, Opioid
Prospective Studies
Caesarean Section
Pain Measurement
Needles
Heart Rate
Blood Pressure
Co-Publications
33
14
10
4
3
2
1
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