P Avanzini, M Vinceti, F Ilariucci, L Masini, M D’Inca, and G Vivoli. 1995. “Serum Selenium Concentrations in Patients With Newly Diagnosed Lymphoid Malignancies”. Haematologica 80 (6). Pavia, Italy, 505-11. https://haematologica.org/article/view/725.