J. Powell, C. C. McConkey. “The Rising Trend in Oesophageal Adenocarcinoma and Gastric Cardia”. European Journal of Cancer Prevention 1, № 3 (1992).
326
J. J. Vicari et al. “The Seroprevalence of CagA-positive Helicobacter pylori Strains in the Spectrum of Gastroesophageal Reflux Disease”. Gastroenterology 115, № 1 (1998).