Detection of phenylketonuria (PKU) by the Guthrie technique in institutions for the mentally retarded.
D000328:Adult; D001681:Biological Assay; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D010649:Phenylalanine / Q000097:blood*; D010661:Phenylketonurias / Q000175:diagnosis*
D010649:Phenylalanine