title: Liability, thresholds, malformations, and syndromes.
authors.forename: F C
authors.initials: FC
authors.lastname: Fraser
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics*; D006330:Heart Defects, Congenital / Q000235:genetics*; D006801:Humans; D008957:Models, Genetic; D013577:Syndrome