1. Long-term adaptation to high doses of morphine causes desensitization of mu-OR- and delta-OR-stimulated G-protein response in forebrain cortex but does not decrease the amount of G-protein alpha subunits;Bourova;Med. Sci. Monit.,2010
2. Prescription Opioids: Side Effects. Centers for Disease Control and Prevention;CDC,2017
3. 75 years of opioid research: the exciting but vain quest for the Holy Grail;Corbett;Br. J. Pharmacol.,2006
4. Sex differences in development of morphine tolerance and dependence in the rat;Craft;Psychopharmacol. Berl.,1999
5. Continuous morphine produces more tolerance than intermittent or acute treatment;Dighe;Pharmacol. Biochem. Behav.,2009