1. Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, I.R. Iran.
2. Department of Pharmacodynamy and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, I.R. Iran.
3. Department of Pharmacology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, I.R. Iran.