Department of Emergency Medicine, University of Nebraska College of Medicine, Omaha, Nebraska;
Deaconess Medical Center,Spokane,Washington,USA;
Department of Emergency Medicine, University of Nebraska College of Medicine, Omaha, Nebraska;
Department of Emergency Medicine, University of Nebraska College of Medicine, Omaha, Nebraska;
Department of Emergency Medicine, University of Nebraska College of Medicine, Omaha, Nebraska;
Department of Epidemiology,University of Nebraska College of Public Health,Omaha,Nebraska,USA;
Department of Genetics,Cell Biology,and Anatomy,University of Nebraska College of Medicine,Omaha,Nebraska,USA;
Department of Emergency Medicine, University of Nebraska College of Medicine, Omaha, Nebraska;