000 00289cam a2200109 4500
001 00029378
008 160630t xxu||||| |||| 00| 0 eng d
020 _aAMJOBSTETGYNECOL
022 _a00029378
245 0 _aAmerican Journal of Obstetrics and Gynecology
260 _aSt. Louis, MO
_bElsevier
999 _c53930
_d53930