1. C. H. Ding:
Department of Medical Microbiology & Immunology, Faculty of Medicine, The National University of Malaysia, Cheras, Kuala Lumpur, Malaysia
2. S. Hussin:
Department of Medical Microbiology & Immunology, Faculty of Medicine, The National University of Malaysia, Cheras, Kuala Lumpur, Malaysia
3. M. N. Tzar:
Department of Medical Microbiology & Immunology, Faculty of Medicine, The National University of Malaysia, Cheras, Kuala Lumpur, Malaysia
4. S. R. Ramli:
Department of Medical Microbiology & Immunology, Faculty of Medicine, The National University of Malaysia, Cheras, Kuala Lumpur, Malaysia