1. Department of Pathology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia;
2. Department of Laboratory Diagnostic Services, Universiti Kebangsaan Malaysia Medical Centre, Kuala, Lumpur, Malaysia;
3. School of Bioscience and Biotechnology, Universiti Kebangsaan Malaysia, Selangor, Malaysia;
4. Department of Paediatrics, Universiti Kebangsaan Malaysia Medical Centre, Kuala, Lumpur, Malaysia;
5. Department of Medical Science II, Faculty of Medicine and Health Science, Universiti Sains Islam Malaysia, Nilai, Malaysia