TY  - GEN
AU  - Caughey,Aaron B
AU  - Nicholson,James M
AU  - Washington,A Eugene
TI  - First- vs second-trimester ultrasound: the effect on pregnancy dating and perinatal outcomes
SN  - 1097-6868
PY  - 2008///0708
KW  - Adult
KW  - Female
KW  - Gestational Age
KW  - Humans
KW  - Perinatal Care
KW  - Pregnancy
KW  - Pregnancy Outcome
KW  - Pregnancy Trimester, First
KW  - Pregnancy Trimester, Second
KW  - Pregnancy, Prolonged
KW  - Retrospective Studies
KW  - Ultrasonography, Prenatal
N1  - Publication Type: Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
UR  - https://doi.org/10.1016/j.ajog.2008.03.034
ER  -