D. Niino, K. Tsukasaki, K. Torii, D. Imanishi, T. Tsuchiya, Y. Onimaru, H. Tsushima, S. Yoshida, Y. Yamada, S. Kamihira, M. Tomonaga. Human Herpes virus 8-negative primary effusion lymphoma with BCL6 rearrangement in a patient with idiopathic CD4 positive T-lymphocytopenia. Haematologica 2007;93(1):e21-e23; https://doi.org/10.3324/haematol.12085.