1. Department of Nursing Science, Faculty of Medicine; University of Malaya; 50603 Kuala Lumpur Malaysia
2. Intensive Care Unit; University of Malaya Medical Centre; Kuala Lumpur Malaysia
3. Department of Anaesthesiology, Faculty of Medicine; 50603 University of Malaya; Kuala Lumpur Malaysia
4. Department of Social and Preventive Medicine, Faculty of Medicine; 50603, University of Malaya; Kuala Lumpur Malaysia
5. Institute of Educational Leadership & Unit for the Enhancement of Academic Performance (ULPA); 50603, University of Malaya; Kuala Lumpur Malaysia