TY  - BOOK
TI  - Obstetrics and Gynecology
SN  - 00029-784
PY  - 2019///
CY  - United States 
PB  - Lippincott Williams & Wilkins 
KW  - Obstetrics and Gyneacology
N1  - Volume 134
Number 1-3
2019
ER  -