1. Glader B. Anemia: General aspects. In: Greer JP, Foerster J, Lukens JN, et al, editors. Wintrobe's Clinical Hematology. 11th ed. Baltimore, Md: Williams & Wilkins; 2004. pp. 947-978
2. Hoffbrand V, Provan D. ABC of clinical haematology: Macrocytic anaemias. British Medical Journal. 1997;314:430-433
3. Addison T. Anaemia-disease of the supra-renal capsules. London Medical Gazette. 1849;43:517-518
4. Minot GR, Murphy WP. Treatment of pernicious anemia by a special diet. Blood. 1948;3:8-21
5. Castle WB. The effect of the administration to patients with pernicious anemia of the contents of the normal human stomach recovered after the ingestion of beef muscle. American Journal of the Medical Sciences. 1929;87:470-476