G. Kapitsopoulos

Onset of tolerance to discriminative stimulus effects of morphine

A. Young, M. Makhay, E. S. Steigerwald, 1991, Pharmacology Biochemistry and Behavior.

Tolerance to morphine-like stimulus effects of mu opioid agonists.

A. Young, M. Makhay, G. Kapitsopoulos, 1991, The Journal of pharmacology and experimental therapeutics.