Gonzalez-Serratos, Hugo; Chang, Ruzhang; Pereira, Edna F. R.; Castro, Newton G.; Aracava, Yasco; Melo, Paulo A.; Lima, Patricia C.; Fraga, Carlos A. M.; Barreiro, Eliezer J.; Albuquerque, Edson X. Journal of Pharmacology and Experimental Therapeutics, 2001 , vol. 299, # 2 p. 558 - 566