The "lemon" sign: a clinical perspective.
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Department of Radiology, University of California, San Francisco 94143.
D005260:Female; D005333:Fetus / Q000473:pathology*; D006801:Humans; D008591:Meningomyelocele / Q000175:diagnosis*; D011237:Predictive Value of Tests; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012886:Skull / Q000473:pathology*; D014463:Ultrasonography