Letter: Gastric cancer and pernicious anaemia - Often Helicobacter pylori in disguise; Authors' reply

摘要

As stated in the discussion, in this systematic review, unfortunately the type of gastritis underlying the diagnosis of PA could not be evaluated because these data were not systematically described in the included studies. The diagnosis of PA was mainly made by blood tests, Schilling test or bone marrow evaluation and only in two studies by histology of fundic biopsies.