1. A simple phenylalanine method for detecting phenylketonuria in large populations of newborn infants.;Guthrie;Pediatrics,1963
2. Phenylketonuria screening program.;MacCready;N Engl J Med,1963
3. The origin of newborn screening.;Guthrie;Screening,1992
4. Blood phenylalanine levels and intelligence of 10-year old children with PKU in the national collaborative study.;Michals;J Am Diet Assoc,1988
5. Single-gene autosomal recessive disorders and Prader-Willi syndrome: an update for food and nutrition professionals.;Issacs;J Am Diet Assoc,2007