Finberg, Harris J The amniotic wrinkle: a pitfall in evaluating amniotic fluid for twins. [electronic resource] - Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine Feb 2010 - 249-54 p. digital Publication Type: Journal Article ISSN: 1550-9613 Standard No.: 10.7863/jum.2010.29.2.249 doi Subjects--Topical Terms: Amniotic Fluid--diagnostic imagingDiagnosis, DifferentialFemaleFetofetal Transfusion--diagnostic imagingHumansMaleOligohydramnios--diagnostic imagingPregnancyUltrasonography, Prenatal--methods