Morphine or U-50,488 suppresses Fos protein-like immunoreactivity in the spinal cord and nucleus tractus solitarii evoked by a noxious visceral stimulus in the rat.

Hammond DL, Presley R, Gogas KR, Basbaum AI. Morphine or U-50,488 suppresses Fos protein-like immunoreactivity in the spinal cord and nucleus tractus solitarii evoked by a noxious visceral stimulus in the rat. J Comp Neurol. 1992 Jan 8; 315(2):244-53.

1992
http://profiles.ucsf.edu/profile/249276
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Hammond DL, Presley R, Gogas KR, Basbaum AI