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Tomaszewski Z, Johnson MP, Huang X, Nichols DE.Tomaszewski Z, et al. Among authors: nichols de.J Med Chem. 1992 May 29;35(11):2061-4. doi: 10.1021/jm00089a017.J Med Chem. 1992.PMID: 1534585
Elsworth JD, Lawrence MS, Roth RH, Taylor JR, Mailman RB, Nichols DE, Lewis MH, Redmond DE Jr.Elsworth JD, et al. Among authors: nichols de.J Pharmacol Exp Ther. 1991 Nov;259(2):595-600.J Pharmacol Exp Ther. 1991.PMID: 1682479