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Substance P and neurokinin A were assayed in the trigeminal nucleus and cervical spinal cord of 4-day cycling female, ovariectomized, and male rats. During the estrous cycle, levels were largely(More)
The concentrations of Substance P and Neurokinin A were measured in plasma, and the hypothalamo-pituitary complex of 4-day-cycling female, ovariectomized and male rats. Estrous cycle-related(More)