1. Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China
2. Department of Intensive Care, Tuen Mun Hospital, Hong Kong SAR, China
3. Department of Intensive Care, Pamela Youde Nethersole Eastern Hospital, Hong Kong SAR, China
4. Adult Intensive Care Unit, Queen Mary Hospital, Hong Kong SAR, China
5. Department of Intensive Care, Kwong Wah Hospital, Hong Kong SAR, China
6. Department of Intensive Care Unit, Princess Margaret Hospital/Yan Chai Hospital, Hong Kong SAR, China
7. Department of Intensive Care, Caritas Medical Centre, Hong Kong SAR, China
8. Department of Intensive Care, North District Hospital, Hong Kong SAR, China
9. Department of Anesthesiology, Critical Care and Pain Medicine, Hadassah Medical Organization and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel