1. Division of Nephrology, John H. Stroger Jr Hospital of Cook County, Chicago, Illinois
2. Chang Gung Memorial Hospital, Department of Trauma and Emergency Surgery, Chang Gung University, Taoyuan City, Taiwan
3. Cook County Trauma and Burns Unit, John H. Stroger Jr Hospital of Cook County, Chicago, Illinois
4. Division of Trauma, John H. Stroger Jr Hospital of Cook County, Chicago, Illinois