Parvy, P Glycine/serine ratio and the prenatal diagnosis of non-ketotic hyperglycinaemia. [electronic resource] - Prenatal diagnosis May 1990 - 303-5 p. digital Publication Type: Journal Article ISSN: 0197-3851 Standard No.: 10.1002/pd.1970100505 doi Subjects--Topical Terms: Amino Acid Metabolism, Inborn Errors--diagnosisAmniotic Fluid--chemistryFalse Negative ReactionsFemaleGlycine--analysisHumansPregnancyPregnancy Trimester, SecondPrenatal DiagnosisSerine--analysis