1. Harvard Medical School Boston MAUSA
2. Magill Department of Anaesthesia, Intensive Care and Pain Management Chelsea and Westminster NHS Foundation Trust London UK
3. Department of Anesthesiology Keck School of Medicine University of Southern California Los Angeles CAUSA
4. Department of Plastic and Oral Surgery Boston Children's Hospital Boston MAUSA
5. Department of Anaesthesia and Perioperative Medicine Groote Schuur Hospital University of Cape Town South Africa
6. Department of Anesthesia and Perioperative Care University of California San Francisco CA USA
7. World Health Organization Geneva Switzerland
8. Wits Centre of Surgical Care for Primary Health and Sustainable Development School of Medicine Faculty of Health Sciences University of Witwatersrand Johannesburg South Africa
9. Department of Anesthesia and Perioperative Medicine and Department of Epidemiology and Biostatistics Schulich School of Medicine and Dentistry Western University London ONCanada
10. University of Cape Town South Africa
11. Department of Anaesthesia and Intensive Care Medicine Baerum Hospital Sandvika Norway
12. Harvard Medical School Boston MA USA