1. A simple phenylalanine method for detecting phenylketonuria in large populations of newborn infants;Guthrie;Pediatrics,1963
2. Fluorimetric method for the determination of phenylalanine in serum;McCaman;J. Lab. & Clin. Med.,1962
3. A quantitative micromethod for the determination of phenylalanine and tyrosine in blood and its application in the diagnosis of phenylketonuria in infants;LaDu;Pediatrics,1963
4. Procedures for monitoring the low phenylalanine diet in treatment of phenylketonuria;Berry;J. Pediat.,1965
5. Micromethods for measuring phenylalanine and tyrosine in serum;Wong;Clin. Chem.,1964