1. Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
2. Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
3. Department of Chemistry, University of North Texas, Denton, TX, USA
4. Grupo De Investigaciones Farmacéutico-Fisicoquímicas, Departamento De Farmacia, Universidad Nacional De Colombia, Bogotá, Colombia