TY  - BOOK
AU  - NYGAARD INGRID E.
TI  - AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY
SN  - 0002-9378
U1  - 618.05 
PY  - 2016///
CY  - NEW YORK
PB  - ELSEVIER 
KW  - OBS & GYNEC
ER  -