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Time: 2024-03-29T01:30:34Z
URL: http://scholar.google.com/scholar_lookup?title=Lack+of+morphine+and+enkephalin+tolerance+in+129%2FSvEv+mice%3A+Evidence+for+a+NMDA+receptor+defect.&year=1998&author=Kolesnikov&journal=J.+Pharmacol.+Exp.+Ther.&volume=284&pages=455-459