BurtCWArispeIE. Characteristics of emergency departments serving high volumes of safety-net patients: United States, 2000. Vital Health Stat132004:1–17. Also available from: URL: http://www.cdc.gov/nchs/data/series/sr_13.sr13_155.pdf
2.
National Center for Health Statistics (US). Health insurance coverage: estimates from the 2003 National Health Interview Survey. Hyattsville, MD: National Center for Health Statistics; 2004 Jun.
