title: Pitfalls of gestational age reassignment in evaluation of low maternal serum alpha-fetoprotein levels.
abstract: Accurate interpretation of low maternal serum alpha-fetoprotein levels depends on confirmation of gestational age by ultrasound. However, revision of gestational age estimations based solely on sonographic fetal biometry may result in excluding the fetus with trisomy from further diagnostic study.
authors: Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill.
authors: S G
authors: SG
authors: Albright
authors: L H
authors: LH
authors: Lingley
authors: J W
authors: JW
authors: Seeds
authors: B
authors: B
authors: Lincoln-Boyea
mesh_terms: D000328:Adult; D002887:Chromosomes, Human, Pair 18; D004314:Down Syndrome / Q000175:diagnosis; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D014314:Trisomy; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D000509:alpha-Fetoproteins