Eltahir, Z., G. J. S. Jenkins, J. N. Baxter, L. Hopkins, and A. P. Griffiths. “Oesophagus / Esofago (C15.9) - Apoptotic Frequencies Are Inversely re­lated to Levels of Cell Survival Proteins in Neoplastic Development in Patients With Barrett’s Oesophagus”. European Journal of Oncology, Vol. 18, no. 3, Feb. 2014, pp. 129-38, http://www.mattioli1885journals.com/index.php/Europeanjournalofoncology/article/view/3445.