1. Department of Surgery, University of Washington, 1959 NE Pacific Street, Suite BB-487, PO Box 356410, Seattle, WA 98195-6410, United States of America (USA).
2. Department for the Management of Noncommunicable Diseases, Disability, Violence and Injury Prevention, World Health Organization, Geneva, Switzerland.
3. Department of Surgery, University of Vermont Medical Center, Burlington, USA.