Bonham, J R A neural tube defect specific form of acetylcholinesterase in amniotic fluid. [electronic resource] - Clinica chimica acta; international journal of clinical chemistry Dec 1983 - 233-7 p. digital Publication Type: Journal Article ISSN: 0009-8981 Standard No.: 10.1016/0009-8981(83)90140-7 doi Subjects--Topical Terms: Acetylcholinesterase--analysisAmniotic Fluid--enzymologyAnencephaly--diagnosisCentrifugation, Density GradientClinical Enzyme TestsFemaleHernia, Umbilical--diagnosisHumansNeural Tube Defects--diagnosisPregnancyPrenatal DiagnosisSpina Bifida Occulta--diagnosisalpha-Fetoproteins--analysis