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Potentiation by ketamine of fentanyl antinociception. I. An experimental study in rats showing that ketamine administered by non-spinal routes targets spinal cord antinociceptive systems

Fentanyl AntinociceptionPain MedicineMedicineNeuropathic PainExperimental StudyNeuropharmacologyNeurosciencePain MechanismNervous SystemAnesthesiaPharmacologyAnesthetic PharmacologyAnalgesicsPain Research