should supplementextra Vitamin B12, since it is not available fromvegetarian food sources(see also "Vegetarianism"), while those with insufficient stomach acid and intrinsic factor may have to supplement 1,000 mcg - 2,000 mcg of Vitamin B12 on a daily basis, or get regular Vitamin...
In multivariate analysis, overall survival in all patients was negatively associated with VitB12 [control: hazard ratio (HR): 1.4, 95% CI: 1.01–1.96, P = 0.04, false discovery rate (FDR): 0.069; IO: HR: 2.74 as sum of linear baseline and interaction effects, log scale], age (HR: ...