TY  - JOUR
A1  - Hamilton, B.
A1  - Martin, J.
A1  - Ventura, S. 
T1  - Births: Preliminary Data for 2011
Y1  - 2012
JF  - National Vital Statistics Reports 
VL  - 61
IS  - 5
SP  - 1
EP  - -21

ER  -