... vitaminB12 deficiency, were already being treated for a somaticdisorder accompanying a vitamin B12 deficiency, hadsevere cognitive disorders or severe psychotic complaints or were severely suicidal, ... Helicobacter pylori(H. pylori), [18,19]. An insufficient consumption of vita-min B12 can ultimately result in vitamin B12 deficiency[17]. The presence of H. pylori not only plays a direct role in the ... B12 deficiency and hyperhomocysteinaemiaNo vitamin B12 deficiency, mean (SD)Vitamin B12 deficiency, mean (SD)t Test P value No hyperhomocysteinaemia, mean (SD)Hyperhomocysteinaemia, mean...