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Hansen, Svein, Stein Emil Vollset, Mohammad H. Derakhshan, Valerie Fyfe, Kjetil K. Melby, Steinar Aase, Egil Jellum, und Kenneth E L. McColl. Two Distinct Aetiologies of Cardia Cancer; Evidence From Premorbid Serological Markers of Gastric Atrophy and Helicobacter Pylori Status. BMJ Group, 2007.

Hansen, Svein, et al. Two Distinct Aetiologies of Cardia Cancer; Evidence From Premorbid Serological Markers of Gastric Atrophy and Helicobacter Pylori Status. BMJ Group, 2007.