1. 1Pharmacology Section, H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
2. 2COMSATS Institute of Information Technology, Department of Pharmacy, Abbottabad 22060, K.P.K., Pakistan
3. 3Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia