Author(s) affiliations:Tahira Assad1, Nasim Karim2, Ishrat Younus3, Zeeshan Feroz4*
1Karachi Institute of Medical Sciences, Karachi, PAKISTAN.
2Bahria University Medical and Dental College Karachi, PAKISTAN.
3Faculty of Pharmacy, Hamdard University, Karachi, PAKISTAN.
4Department of Basic Sciences, College of Science and Health Professions, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, KINGDOM OF SAUDI ARABIA.