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A double-blind randomized controlled trial of patient-controlled epidural analgesia with or without a background infusion following initial spinal analgesia for labor pain

Background InfusionHealth SciencesPain MedicinePostoperative Pain ManagementGynecologyPreoperative PainDouble-blind RandomizedPain ManagementLabor PainAnesthesiaMedicineRegional AnesthesiaBack PainAnesthesiologyPain Research