Subjective versus objective evaluation of amniotic fluid volume of pregnancies of less than 24 weeks' gestation: how can we be accurate?
Magann EF, Chauhan SP, Whitworth NS, Isler C, Wiggs C, Morrison JC. Subjective versus objective evaluation of amniotic fluid volume of pregnancies of less than 24 weeks' gestation: how can we be accurate? J Ultrasound Med. 2001 Mar; 20(3):191-5.