1. Department
of Anesthesiology, Pharmacology and Therapeutics, Faculty of Medicine, The University of British
Columbia, 2176 Health Science Mall, Vancouver, British Columbia, Canada
2. Department of Pharmacology and Therapeutics, Faculty of Basic Clinical Sciences, Bowen University,
Iwo, Nigeria
3. Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil