Trounson, A L Preimplantation genetic diagnosis--counting chickens before they hatch? [electronic resource] - Human reproduction (Oxford, England) May 1992 - 583-4 p. digital Publication Type: Editorial ISSN: 0268-1161 Subjects--Topical Terms: Chromosome Aberrations--diagnosisChromosome DisordersDiagnostic ErrorsEmbryonic Development--geneticsFemaleHumansPolymerase Chain ReactionPregnancyPrenatal Diagnosis--methods