title: Association of holoprosencephaly and Down syndrome.
authors.forename: M L
authors.initials: ML
authors.lastname: Martinez-Frías
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics*; D001921:Brain / Q000002:abnormalities*; D002648:Child; D003430:Cross-Sectional Studies; D004314:Down Syndrome / Q000150:complications* / Q000235:genetics; D005145:Face / Q000002:abnormalities; D005820:Genetic Testing; D006801:Humans