TY  - BOOK
ED  - US Health Education and Welfare. Dept.of Public Health Service
TI  - A Study of Infant Mortality from Linked Records : By Birth Weight,Period of Gestation, and Other Variables,United States
T2  - Vital and Health Statistics.Series 20: Data from the National Vital Statistics System, no. 12
PY  - 1972///
CY  - Rockville, Md.
PB  - National Centre forHealth Statistics
KW  - Health occupation
KW  - US
ER  -