Letter: Screening for phenylketonuria in mental retardates in Hyderabad using Guthrie's test.
D000293:Adolescent; D001412:Bacillus subtilis; D001681:Biological Assay; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007194:India; D008607:Intellectual Disability / Q000175:diagnosis*; D010649:Phenylalanine / Q000097:blood*; D010661:Phenylketonurias / Q000175:diagnosis*
D010649:Phenylalanine