TY  - SER
AU  - The American College of Obstetricians and Gynecologist
TI  - Obstetrics & Gynecology
SN  - 0029-7844
PY  - 1999///
CY  - New York
PB  - The American College of Obstetricians and Gynecologist
KW  - Obstetricia
KW  - Ginecologia
ER  -