[1] Natl Univ Singapore Hosp, Dept Med, Div Resp & Crit Care Med, Singapore 119074, Singapore
[2] Univ Ulsan, Coll Med, Asan Med Ctr, Div Pulm & Crit Care Med, Seoul, South Korea
[3] Peking Union Med Coll Hosp, Dept Crit Care Med, Beijing, Peoples R China
[4] Tata Mem Hosp, Dept Anaesthesia Crit Care & Pain, Bombay 400012, Maharashtra, India
[5] Hosp Sultanah Aminah, Dept Anaesthesia & Intens Care, Johor Baharu, Malaysia
[6] Chinese Univ Hong Kong, Dept Anaesthesia & Intens Care, Shatin, Peoples R China
[7] BIRDEM Hosp, Dept Crit Care Med, Dhaka, Bangladesh
[8] Kathmandu Med Coll Teaching Hosp, Dept Anesthesia & Intens Care, Kathmandu, Nepal
[9] Bach Mai Hosp, Dept Intens Care, Hanoi, Vietnam
[10] King Saud Bin Abdulaziz Univ Hlth Sci, Dept Intens Care, Riyadh, Saudi Arabia
[11] Aga Khan Univ, Sect Pulm & Crit Care Med, Dept Med, Karachi, Pakistan
[12] DrSoetomo Gen Hosp, Dept Intens Care, Surabaya, Indonesia
[13] Chang Gung Mem Hosp, Kaohsiung Med Ctr, Dept Resp Therapy, Kaohsiung, Taiwan
[14] RIPAS Hosp, Intens Care Unit, Bandar Seri Begawan, Brunei
[15] Salmaniya Med Complex, Intens Care Unit, Manama, Bahrain
[16] Univ Tokushima, Grad Sch, Tokushima 770, Japan
[17] Covidien, Singapore, Singapore
[18] Natl Univ Singapore, Yong Loo Lin Sch Med, Biostat Unit, Singapore 117595, Singapore