TY  - RPRT
A1  - Matthews, T.J
A1  - Hamilton, B.E.
T1  - Delayed Childbearing: More Women are Having Their First Child Later in Life
Y1  - 2009
PB  - National Center for Health Statistics
CY  - Hyattsville, MD
T3  - NCHS Data Brief 
IS  - No. 29

ER  -