Abstract
Differential effects of divalent cations, cation chelators and an ionophore (A23187) on morphine and dibutyryl guanosine 3': 5'-cyclic monophosphate antinociception.
F J Vocci Jr, S P Welch and W L Dewey
Journal of Pharmacology and Experimental Therapeutics September 1980, 214 (3) 463-466;