title: Maternal cell contamination in chorionic villi cultures--exclusion by chromosomal fluorescence polymorphisms.
mesh_terms: D002824:Chorionic Villi / Q000648:ultrastructure*; D002871:Chromosome Banding; D005260:Female; D006801:Humans; D011110:Polymorphism, Genetic; D011247:Pregnancy; D011296:Prenatal Diagnosis