[1] Queen Elizabeth Cent Hosp, Dept Anaesthesia & Intens Care, POB 95, Blantyre, Malawi
[2] Karolinska Inst, Dept Publ Hlth Sci, Global Hlth Hlth Syst & Policy, Stockholm, Sweden
[3] MUHAS, Muhimbili Ortopaed & Neurosurg Inst MOI, Dept Anaesthesia & Crit Care, Dar Es Salaam, Tanzania
[4] Van Teaching & Res Hosp, Intens Care Unit, Van, Turkey
[5] Alfred Hosp, Intens Care Unit, Melbourne, Vic, Australia
[6] Bombay Hosp Inst Med Sci, Dept Crit Care Med, Bombay, Maharashtra, India