[1] Hospital of the University of Pennsylvania,Department of Anesthesia and Critical Care
[2] Mayo Clinic Medical School,Department of Surgery
[3] University of Washington,School of Public Health, School of Medical Sciences
[4] Kwame Nkrumah University of Science and Technology,Department of Interdisciplinary Health Sciences
[5] Stellenbosch University,Department of Anesthesiology
[6] University of Maryland,Department of International Health
[7] Surgeons OverSeas (SOS),Department of Surgery
[8] John’s Hopkins Bloomberg School of Public Health,undefined
[9] Columbia University,undefined