Effat Davoudi-Monfared1, Maryam Taghizadeh-Ghehi2. 1. Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran. 2. Research Center for Rational Use of Drugs, Tehran University of Medical Sciences, 4th Floor, No 92, Karimkhan Zand Ave, Hafte Tir Sq, Tehran, Iran. taghizadehgm@sina.tums.ac.ir.