Heterozygous carriers in the relatives of a case of phenylketonuria.
D003201:Computers; D005260:Female; D006579:Heterozygote; D006801:Humans; D008297:Male; D008433:Mathematics; D010375:Pedigree; D010649:Phenylalanine / Q000097:blood; D010661:Phenylketonurias / Q000235:genetics*; D014443:Tyrosine / Q000097:blood
D014443:Tyrosine; D010649:Phenylalanine