British Journal of Cancer Coupland, V H, Lagergren, J, Konfortion, J, Allum, W, Mendall, M A, Hardwick, R H, Linklater, K M, Moller, H & Jack, R H 2012, ' Ethnicity in relation to incidence of oesophageal and gastric cancer in England ', BJC: British Journal of Cancer, vol. 107, no. 11, pp. 1908-1914 . https://doi.org/10.1038/bjc.2012.465