TY  - BOOK
ED  - American College of Obstetricians and Gynecologists, Women's Health Care Physicians
TI  - Your pregnancy and childbirth: month to month 
SN  - 9781934946893
PY  - 2010///
CY  - Washington, DC
PB  - American College of Obstetricians and Gynecologists
KW  - Pregnancy
KW  - Labor, Obstetric
KW  - Popular Works
N1  - References : p. 427-439
ER  -