1. Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Oman
2. Department of Medical Microbiology, Faculty of Medicine and Medical Sciences, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia
3. Division of Clinical Biochemistry, Queen Mary Hospital, Hong Kong SAR, China
4. Department of Pediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong SAR, China