abnormal umbilical artery doppler
amniotic fluid abnormalities
cancer during pregnancy
cholestasis of pregnancy
chorionic villus sampling
diethylstilbestrol exposure
fetal pleural effusions
history of severe preeclampsia
induced abortion
maternal cardiac disease
maternal lupus
maternal obesity
maternal thrombosis
maternal valvular disease
multiple gestations
pelvic malignancy during pregnancy
placenta previa
postpartum thyroiditis
preconception counseling
progressive familial intrahepatic cholestasis (pfic)
recurrent miscarriage
septate uterus in pregnancy
severe preeclampsia
stillbirth
twin to twin transfusion syndrome