[1] Stanford Univ, Anesthesiol & Crit Care, 300 Pasteur Dr, Stanford, CA 94305 USA
[2] Addis Ababa Univ, Coll Hlth Sci, Addis Ababa, Ethiopia
[3] Livingstone Univ Teaching Hosp, Anaesthesia & Crit Care, Livingstone, Zambia
[4] Sir Ketumile Masire Teaching Hosp, Private Bag UB 001, Notwane & Mabutho Rd, Plot 477, Gaborone, Botswana
[5] Muhimbili Univ Hlth & Allied Sci, Dar Es Salaam, Tanzania
[6] Hosp ABC, Dept Anestesia, Vasco Quiroga 154, Ciudad Mexico 05348, Mexico
[7] Head Dept CHUK, Consultant Anesthesiol & Crit Care, Kigali, Rwanda
[8] UNIVALLE Univ, Fdn Valle Lili, Anesthesia & Perioperat Med, ICESI, Cali, Colombia
[9] Bayero Univ, Aminu Kano Teaching Hosp, Dept Anaesthesiol & Intens Care, Kano, Nigeria
[10] Karolinska Inst, Dept Global Publ Hlth, Stockholm, Sweden
[11] Queen Mary Univ London, London, England
[12] Univ Rwanda, Anesthesiol & Crit Care, Kigali, Rwanda
[13] Univ Botswana Sch Med, Anaesthesiol & Crit Care, Private Bag UB 001, Notwane & Mabutho Rd, Plot 477, Gaborone, Botswana