Thiagarajah, S Elevated maternal serum alpha-fetoprotein levels: what is the risk of fetal aneuploidy? [electronic resource] - American journal of obstetrics and gynecology Aug 1995 - 388-91; discussion 391-2 p. digital Publication Type: Journal Article ISSN: 0002-9378 Standard No.: 10.1016/0002-9378(95)90257-0 doi Subjects--Topical Terms: AmniocentesisAmniotic Fluid--chemistryAneuploidyChromosome Aberrations--diagnosisChromosome DisordersCongenital Abnormalities--diagnosisFemaleFetal Diseases--diagnosisHumansKaryotypingPregnancyPrenatal DiagnosisRisk FactorsUltrasonography, Prenatalalpha-Fetoproteins--analysis