1. Faculty Medicine and Health Sciences, Universiti Sains Islam Malaysia, Nilai 71800, Malaysia
2. Faculty of Health Sciences, Universiti Teknologi MARA, Bandar Puncak Alam 42300, Malaysia
3. Institute of Medical Science Technology, Universiti Kuala Lumpur, Kajang 43000, Malaysia
4. Anaesthesia and Intensive Care Unit, National Heart Institute, Kuala Lumpur 50400, Malaysia
5. Department of Human & Clinical Anatomy, College of Medicine & Health Sciences, Sultan Qaboos University, Al-Khoud, Muscat 123, Oman