1. The Pharmacogenomics Laboratory, Department of Pharmacology, University of Malaya, Kuala Lumpur, Malaysia
2. Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
3. Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
4. Department of Hematology, Ampang Hospital, Selangor Darul Ehsan, Malaysia