title: Sex ratio among phenylketonuric infants in the United Kingdom.
mesh_terms: D000367:Age Factors; D001800:Blood Specimen Collection; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010649:Phenylalanine / Q000097:blood; D010661:Phenylketonurias / Q000097:blood / Q000453:epidemiology* / Q000235:genetics / Q000652:urine; D012737:Sex Factors; D012744:Sex Ratio; D006113:United Kingdom
chemical_list: D010649:Phenylalanine