TY  - ELEC
A1  - U.S. National Center for Health Statistics
T1  - Historical vital statistics of the United States
Y1  - 2007
PB  - U.S. Department of \linebreak Health and Human Services
CY  - Hyattsville
N1  - http://www.cdc.gov/nchs/products/pubs/pubd/vsus/historical/historical.htm (January 2007)

ER  -