Chia Siang Kow1, Abdullah Faiz Zaihan2, Syed Shahzad Hasan3,4. 1. School of Postgraduate Studies, International Medical University, Kuala Lumpur, Malaysia. chiasiang_93@hotmail.com. 2. Department of Pharmacy, Shah Alam Hospital, Selangor, Malaysia. 3. Department of Pharmacy, University of Huddersfield, Huddersfield, United Kingdom. 4. School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia.