Association between <i>Helicobacter pylori</i> infection and tumor markers: an observational retrospective study.

pylori infection continues to remain elevated in some low/middle-income countries and illustrates a decreasing trend in developed countries such as Canada and the USA. 13 15 Unfortunately, in low/middle-income countries, H. pylori infection continues to play a major role in the incidence of various cancers, including but not limited to gastric cancer, 16 17 pancreatic cancer 18 and lung cancer. 19 As reported in

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