1 Department of Surgery and Global Health Sciences, University of California at San Francisco, San Francisco, CA 94143, USA. Electronic address: dozgediz@hotmail.com.
2 Department of Surgery, Makerere University, Kampala, Uganda.
3 Department of Anesthesia, University of California at San Francisco, San Francisco, CA 94143, USA.
4 Department of Anaesthesia, Makerere University, Kampala, Uganda.
5 WHO Department of Essential Health Technologies, Clinical Procedures Unit, Emergency Essential Surgical Care Project, Geneva, Switzerland.