1. Department of Pediatrics, Alpert Medical School; Brown University, Injury Prevention Center of Rhode Island Hospital; 593 Eddy Street Potter Building, Suite 200, Providence RI 02903
2. Department of Epidemiology; Brown University, School of Public Health; PO Box G-121S Providence RI 02912
3. Department of Emergency Medicine, Injury Prevention Center of Rhode Island Hospital; Alpert Medical School, Brown University; 593 Eddy Street, Claverick 2 Providence RI 02903
4. Department of Health Services, Policy, and Practice; Brown University, School of Public Health; 593 Eddy Street, Claverick 2 Providence RI 02903