1. Department of Cardiac, Thoracic and Vascular Surgery National University Heart Centre Singapore Singapore
2. Department of Surgery, Yong Loo Lin School of Medicine National University Singapore Singapore
3. Department of Anaesthesia National University Hospital Singapore Singapore
4. Department of Paediatrics, Khoo Teck Puat National University Children's Medical Institute National University Hospital Singapore Singapore
5. Centre for Sustainable Medicine, Yong Loo Lin School of Medicine National University of Singapore Singapore