Emergency department visits by persons recently discharged from U.S. hospitals

Burt, Catharine W.
Hyattsville, MD : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics, [2008]

National ambulatory medical care survey : terrorism preparedness among office-based physicians, Unit

Niska, Richard W.
Hyattsville, MD : U.S. Dept. of Health & Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics, [ 2007]