abnormal nuchal translucency
abnormal umbilical artery doppler
advanced maternal age
amniocentesis
bladder exstrophy
cervical incompetence
cholestasis of pregnancy
detailed obstetrical ultrasound
diethylstilbestrol exposure
down syndrome screening
external cephalic version
fetal infection
fetal pleural effusions
history of preterm birth
maternal hematologic disorders
maternal obesity
maternal respiratory disease
peripartum cardiomyopathy
personal history of stillbirth
postpartum thyroiditis
pregnancy related musculoskeletal conditions
prenatal diagnosis
progressive familial intrahepatic cholestasis (pfic)
stillbirth
twin reversed arterial perfusion