1. Risk of chromosomal abnormalities in patients with idiopathic polyhydramnios;Brady;Obstet Gynecol,1992
2. Oligohydramnios: maternal complications and fetal outcome in 145 cases;Golan;Gynecol Obstet Invest,1994
3. Amniotic fluid volume assessment with the four-quadrant technique at 36-42 weeks’ gestation;Phelan;J Reprod Med,1987
4. Ultrasonography in pregnancy;American College of Obstetricians and Gynecologists,1993
5. The four-quadrant assessment of amniotic fluid volume: an adjunct to antepartum fetal heart rate testing;Rutherford;Obstet Gynecol,1987