The activation and expression of endogenous pain control mechanism in rats exposed to nociceptive stimulation under the influence of morphine or naloxone : implications for models of environment-specific tolerance to the analgesic effect of morphine
Internet
http://spectrum.library.concordia.ca/5762/1/NL30701.pdfRochford, Joseph <http://spectrum.library.concordia.ca/view/creators/Rochford=3AJoseph=3A=3A.html> (1985) The activation and expression of endogenous pain control mechanism in rats exposed to nociceptive stimulation under the influence of morphine or naloxone : implications for models of environment-specific tolerance to the analgesic effect of morphine. PhD thesis, Concordia University.