Wiesenfeld-Hallin, Z., Xu, X. J., Hughes, J., Horwell, D. C., & Hökfelt, T. (1990). PD134308, a selective antagonist of cholecystokinin type B receptor, enhances the analgesic effect of morphine and synergistically interacts with intrathecal galanin to depress spinal nociceptive reflexes.

Wiesenfeld-Hallin, Z., X J. Xu, J. Hughes, D C. Horwell, and T. Hökfelt. PD134308, a Selective Antagonist of Cholecystokinin Type B Receptor, Enhances the Analgesic Effect of Morphine and Synergistically Interacts With Intrathecal Galanin to Depress Spinal Nociceptive Reflexes. 1990.

Wiesenfeld-Hallin, Z., et al. PD134308, a Selective Antagonist of Cholecystokinin Type B Receptor, Enhances the Analgesic Effect of Morphine and Synergistically Interacts With Intrathecal Galanin to Depress Spinal Nociceptive Reflexes. 1990.