K Ritis, V Tsironidou, G Martinis, G Kartalis, P Sideras, and G Bourikas. 1997. “Development of CLL in Individuals With Mild Lymphocytosis, Without Bone Marrow Infiltration, But With Evidence of a Monoclonally Expanded Population in Peripheral Blood”. Haematologica 82 (2). Pavia, Italy, 184-86. https://doi.org/10.3324/%x.