| Affiliation: | 1. School of Medicine, University of California, 513 Parnassus Ave, Suite S-224, San Francisco, CA 94143, USA;2. Center for Health Equity in Surgery and Anesthesia, University of California, 550 16th St, 3rd Floor, Box 1224, San Francisco, CA 94158, USA;3. Division of Paediatric Surgery, National Hospital, PO Box 187, FCT, Abuja, Garki, Nigeria;4. Department of Surgery, University of California, 513 Parnassus Avenue, S-321, San Francisco, CA 94143, USA;5. Department of Surgery, University of Illinois at Chicago, Chicago, IL, USA;6. Kids Operating Room, Edinburgh, Scotland, United Kingdom |
