1. Faculty of Medicine and Health, Sydney Health Ethics, The University of Sydney, Sydney, Australia;
2. Centre for Biomedical Ethics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore;
3. Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore;
4. Centre for Medical Education, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore;
5. Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore