1 Division of Respiratory and Critical Care Medicine, University Medicine Cluster, National University Hospital, National University Health System, Singapore, Singapore.
2 Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China.
3 Emergency and Critical Care Medicine, University of Tokushima Graduate School, Tokushima, Japan.
4 Intensive Care Unit, West China Hospital of Sichuan University, Chengdu, China.
5 Department of Anaesthesia, Critical Care and Pain, Tata Memorial Hospital, Mumbai, India.
6 Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
7 Intensive Care Department, Bach Mai Hospital, Hanoi, Vietnam.
8 Department of Anaesthesia and Intensive Care, Sultanah Aminah Hospital, Johor Bahru, Malaysia.
9 Department of Critical Care Medicine, BIRDEM General Hospital, Ibrahim Medical College, Dhaka, Bangladesh.
10 King Saud Bin Abdulaziz University for Health Sciences and King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.
11 Department of Anesthesiology and Reanimation, Faculty of Medicine, University of Airlangga, Dr. Soetomo General Hospital, Surabaya, Indonesia.
12 Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
13 Department of Respiratory Therapy, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
14 Chronic Respiratory Disease Research Center, National Research Institute of Tuberculosis and Lung Disease, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
15 Section of Nephrology, Pulmonary and Critical Care, Department of Medicine, Aga Khan University and Hospital, Karachi, Pakistan.
16 Phramongkutklao Hospital, Bangkok, Thailand.
17 The Medical City, Pasig City, Philippines.
18 Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, 388-1 Pungnap Dong Songpa Ku, Seoul, 138-736, South Korea. yskoh@amc.seoul.kr.