Leon Ellenbogen, William L. Williams, Herbert C. Lichtman
Ellenbogen L, Williams W L, Lichtman H C.
Successful Maintenance of Pernicious Anaemia Patients with Vitamin B12 and Intrinsic Factor for Long Periods
Br Med J 1960; 2 :1066
doi:10.1136/bmj.2.5205.1066