title: Frequency and phenotypic manifestations of schizophrenia in the parents of patients with phenylketonuria.
mesh_terms: D000328:Adult; D005260:Female; D005796:Genes; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D008297:Male; D010641:Phenotype; D010661:Phenylketonurias / Q000235:genetics*; D012559:Schizophrenia / Q000235:genetics*