1. Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
2. Mahidol–Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
3. London School of Hygiene and Tropical Medicine, UK
4. Intensive Care Unit, NHS Foundation Trust, London, University College London Hospitals, UK
5. Division of Pulmonary and Critical Care, Department of Medicine, Phramongkutklao Hospital, Bangkok, Thailand
6. Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand