title: The "lemon" sign: a clinical perspective.
authors.affiliation: Department of Radiology, University of California, San Francisco 94143.
authors.forename: R A
authors.initials: RA
authors.lastname: Filly
mesh_terms: 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