Haseneder, R., Kurz, J., Dodt, H.-U.-U., Kochs, E., Zieglgänsberger, W., Scheller, M., et al. (2004). Isoflurane Reduces Glutamatergic Transmission in Neurons in the Spinal Cord Superficial Dorsal Horn: Evidence for a Presynaptic Site of an Analgesic Action. Anesthesia and Analgesia, 98, 1718-1723. doi:10.1213/01.ANE.0000112309.80017.3F.