1.Nelson Texbook of pediatrics 19th edition, W.B. Sauders Company, 2010
2. Lothar Thomas, Clinical Laboratory Diagnosis, Use and Assessment of Clinical Laboratory Results, First English Edition, TH-Books Verlagsgesellschaft mbH, Frankfurt/Main, 1998.
3. Michael L. Bishop, Edward P. Fody, Lary E. Schoeff, Clinical Chemistry, Techniques, principble, correlations, Sixth edition, Wolters Kluwer\ Lippincott Williams & Wilkins, 2010.
4. Package inserts provided by manufacrurers in the reagent kits.
5. James T. Wu, Linda Book, Karen Sudar, Serun Alpha fetoprotein Levels in normal infants, Pediatr.Res. 15: 50-52, 1981.