ultrasonography, prenatal (35)
infant, small for gestational age (15)
fetal growth retardation (13)
pregnancy trimester, first (13)
fetal weight (8)
cervical length measurement (6)
cervix uteri (6)
prenatal diagnosis (6)
fetal macrosomia (5)
pre-eclampsia (5)
pregnancy trimester, second (5)
birth weight (4)
pregnancy trimester, third (4)
pregnancy-associated plasma protein-a (4)
risk assessment (4)
chorionic gonadotropin, beta subunit, human (3)
diabetes, gestational (3)
fetus (3)
gestational age (3)
gonadotropins, chorionic (3)
hypertension, pregnancy-induced (3)
leptin (3)
placenta growth factor (3)
pregnancy proteins (3)
premature birth (3)
stillbirth (3)
cervix (2)
cisterna magna (2)
crown-rump length (2)
echoencephalography (2)
fetal development (2)
heart rate, fetal (2)
hypertension (2)
nasal bone (2)
neural tube defects (2)
nuchal translucency measurement (2)
obstetric labor, premature (2)
perinatology (2)
placenta (2)
pregnancy (2)
pregnancy complications (2)
spina bifida cystica (2)
uterine artery (2)
vascular endothelial growth factor receptor-1 (2)
vasodilator agents (2)
abnormalities (1)
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adenocarcinoma (1)
adrenergic beta-antagonists (1)
agenesis of corpus callosum (1)