METZ J, LEWIS S M, KEELEY K J, HART D
J Clin Pathol. 1960 Sep;13(5):394-5. doi: 10.1136/jcp.13.5.394.
The absorption of (60)CoB(12) has been studied in a group of patients suffering from megaloblastic anaemia associated with pregnancy and in a control group. The mean urinary excretion of (60)CoB(12) in the patients with megaloblastic anaemia is not significantly different from that of the control group. Five of the 30 patients showed a value towards the lower limit of normal, but the serum vitamin B(12) content in this group was within the normal range. Malabsorption of vitamin B(12) does not appear to play a significant role in the pathogenesis of this form of megaloblastic anaemia.