Impact of Pharmaceutical Companies’ Promotional Tools on Physicians’ Prescription Patterns: A Systematic Review

May Alowi^* and Yusuf Kani

University of Medical Sciences and Technology, Khartoum, Sudan, E-mail: yusufkani@hotmail.com

^*Corresponding Author: May Alowi, University of Medical Sciences and Technology, Khartoum, Sudan, Tel: +249912318168 Email: