Fukazawa Y, Maeda T, Kiguchi N, Tohya K, Kimura M, Kishioka S (2007). „Activation of spinal cholecystokinin and neurokinin-1 receptors is associated with the attenuation of intrathecal morphine analgesia following electroacupuncture stimulation in rats”. J. Pharmacol. Sci.104 (2): 159–66. DOI:10.1254/jphs.FP0070475. PMID17558184.
Fukazawa Y, Maeda T, Kiguchi N, Tohya K, Kimura M, Kishioka S (2007). „Activation of spinal cholecystokinin and neurokinin-1 receptors is associated with the attenuation of intrathecal morphine analgesia following electroacupuncture stimulation in rats”. J. Pharmacol. Sci.104 (2): 159–66. DOI:10.1254/jphs.FP0070475. PMID17558184.